Maths-
General
Easy

Question

Use the binomial theorem to expand the expressions:
open parentheses x squared plus 1 close parentheses to the power of 4

The correct answer is: Thus, the expansion is (x^2 + 1)^4 = x^8 + 4x^6 + 6x^4 + 4x^2 + 1


    ANSWER:
    Hint:
    The binomial expansion is left parenthesis x plus y right parenthesis to the power of n equals sum from k equals 0 to n of   n C subscript k x to the power of n minus k end exponent y to the power of k comma text  here  end text n greater or equal than 0 ,
    We are asked to find the expansion of  using Binomial theorem.
    Step 1 of 2:
    The given expression is  open parentheses x squared plus 1 close parentheses to the power of 4 text . Here,  end text straight n equals 4 text , so we would have  end text 4 plus 1 equals 5 text  terms in the expansion of the expression. The values of  end text x equals x squared straight & y equals 1
    Step 2 of 2:
    Substitute the values in the binomial equation to get the expansion of the expression;
    open parentheses x squared plus 1 close parentheses to the power of 4 equals 4 C subscript 0 open parentheses x squared close parentheses to the power of 4 plus 4 C subscript 1 open parentheses x squared close parentheses cubed left parenthesis 1 right parenthesis plus 4 C subscript 2 open parentheses x squared close parentheses squared left parenthesis 1 right parenthesis squared plus 4 C subscript 3 open parentheses x squared close parentheses left parenthesis 1 right parenthesis cubed plus 4 C subscript 4 left parenthesis 1 right parenthesis to the power of 4
    equals x to the power of 8 plus 4 x to the power of 6 plus 6 x to the power of 4 plus 4 x squared plus 1
    Thus, the expansion is open parentheses x squared plus 1 close parentheses to the power of 4 equals x to the power of 8 plus 4 x to the power of 6 plus 6 x to the power of 4 plus 4 x squared plus 1
    Note:
    The answer can also be found using the Pascal’s triangle. For the expansion of the expression (x+y)n ,
    we would consider the (n+1)th row in the triangle.

    Related Questions to study

    General
    Maths-

    Use polynomial identities to multiply each expression .
    left parenthesis 2 x plus 8 y right parenthesis left parenthesis 2 x minus 8 y right parenthesis

    Use polynomial identities to multiply each expression .
    left parenthesis 2 x plus 8 y right parenthesis left parenthesis 2 x minus 8 y right parenthesis

    Maths-General
    General
    Maths-

    Use the binomial theorem to expand the expressions:
    left parenthesis b minus 0.5 right parenthesis to the power of 4

    Use the binomial theorem to expand the expressions:
    left parenthesis b minus 0.5 right parenthesis to the power of 4

    Maths-General
    General
    Maths-

    Use the binomial theorem to expand the expressions:
    left parenthesis 2 a minus b right parenthesis to the power of 5

    Use the binomial theorem to expand the expressions:
    left parenthesis 2 a minus b right parenthesis to the power of 5

    Maths-General
    parallel
    General
    Maths-

    Use the binomial theorem to expand the expressions:
    left parenthesis x plus 3 right parenthesis cubed

    Use the binomial theorem to expand the expressions:
    left parenthesis x plus 3 right parenthesis cubed

    Maths-General
    General
    Maths-

    Use polynomial identities to factor each polynomial : m to the power of 9 plus 27 n to the power of 6

    Polynomial identities are used to reduce the time and space while you solve higher degree polynomial expressions.

    Use polynomial identities to factor each polynomial : m to the power of 9 plus 27 n to the power of 6

    Maths-General

    Polynomial identities are used to reduce the time and space while you solve higher degree polynomial expressions.

    General
    Maths-

    Use polynomial identities to factor each polynomial : open parentheses 8 x to the power of 6 minus y cubed close parentheses

    We use identities to speed up the process of multiplication and simplification. There are some basic polynomial identities that you need to by heart.

    Use polynomial identities to factor each polynomial : open parentheses 8 x to the power of 6 minus y cubed close parentheses

    Maths-General

    We use identities to speed up the process of multiplication and simplification. There are some basic polynomial identities that you need to by heart.

    parallel
    General
    Maths-

    Use polynomial identities to factor each polynomial : open parentheses 36 a squared minus 4 b squared close parentheses

    Polynomial identities are used to reduce the time and space while you solve higher degree polynomial expressions

    Use polynomial identities to factor each polynomial : open parentheses 36 a squared minus 4 b squared close parentheses

    Maths-General

    Polynomial identities are used to reduce the time and space while you solve higher degree polynomial expressions

    General
    Maths-

    Use polynomial identities to multiply each expression open parentheses x plus 3 y cubed close parentheses squared

    Any expression of the form (a + b)2 can be expanded using the identity left parenthesis a plus b right parenthesis squared equals a squared plus a b plus b squared rather than using the conventional and time taking method of multiplying them, (a + b)(a + b)

    Use polynomial identities to multiply each expression open parentheses x plus 3 y cubed close parentheses squared

    Maths-General

    Any expression of the form (a + b)2 can be expanded using the identity left parenthesis a plus b right parenthesis squared equals a squared plus a b plus b squared rather than using the conventional and time taking method of multiplying them, (a + b)(a + b)

    General
    Maths-

    Use polynomial identities to factor the polynomials or simplify the expressions :
    8 cubed minus 2 cubed

    Use polynomial identities to factor the polynomials or simplify the expressions :
    8 cubed minus 2 cubed

    Maths-General
    parallel
    General
    Maths-

    Dakota said the third term of the expansions of left parenthesis 2 g plus 3 h right parenthesis to the power of 4 text  is  end text 36 g squared h squared is .Explain Dakota’s error and then correct the answer.

    Dakota said the third term of the expansions of left parenthesis 2 g plus 3 h right parenthesis to the power of 4 text  is  end text 36 g squared h squared is .Explain Dakota’s error and then correct the answer.

    Maths-General
    General
    Maths-

    Use polynomial identities to multiply each expression .left parenthesis 2 x plus 8 y right parenthesis left parenthesis 2 x minus 8 y right parenthesis

    Polynomial identities are used to reduce the time and space while you solve higher degree polynomial expressions.

    Use polynomial identities to multiply each expression .left parenthesis 2 x plus 8 y right parenthesis left parenthesis 2 x minus 8 y right parenthesis

    Maths-General

    Polynomial identities are used to reduce the time and space while you solve higher degree polynomial expressions.

    General
    Maths-

    What number does C3 represent in the expansion C subscript 0 a to the power of 5 plus C subscript 1 a to the power of 4 b plus C subscript 2 a squared b squared plus C subscript 3 a b cubed plus C subscript 4 b to the power of 4 ? Explain.

    What number does C3 represent in the expansion C subscript 0 a to the power of 5 plus C subscript 1 a to the power of 4 b plus C subscript 2 a squared b squared plus C subscript 3 a b cubed plus C subscript 4 b to the power of 4 ? Explain.

    Maths-General
    parallel
    General
    Maths-

    Dakota said the third term of the expansions of left parenthesis 2 g plus 3 h right parenthesis to the power of 4 text  is  end text 36 g squared h squared .Explain Dakota’s error and then correct the answer.

    You can use Both the Pascal’s triangle and binomial expansion to find the value of (x + y)n .

    Dakota said the third term of the expansions of left parenthesis 2 g plus 3 h right parenthesis to the power of 4 text  is  end text 36 g squared h squared .Explain Dakota’s error and then correct the answer.

    Maths-General

    You can use Both the Pascal’s triangle and binomial expansion to find the value of (x + y)n .

    General
    Maths-

    What number does C3 represent in the expansion C subscript 0 a to the power of 5 plus C subscript 1 a to the power of 4 b plus C subscript 2 a squared b squared plus C subscript 3 a b cubed plus C subscript 4 b to the power of 4 ? Explain.

    The value n C subscript r equals fraction numerator n factorial over denominator r factorial left parenthesis n minus r right parenthesis factorial end fraction is called the combination permutation.

    What number does C3 represent in the expansion C subscript 0 a to the power of 5 plus C subscript 1 a to the power of 4 b plus C subscript 2 a squared b squared plus C subscript 3 a b cubed plus C subscript 4 b to the power of 4 ? Explain.

    Maths-General

    The value n C subscript r equals fraction numerator n factorial over denominator r factorial left parenthesis n minus r right parenthesis factorial end fraction is called the combination permutation.

    General
    Maths-

    Explain how to use a polynomial identity to factor .8 x to the power of 6 minus 27 y cubed

    Explain how to use a polynomial identity to factor .8 x to the power of 6 minus 27 y cubed

    Maths-General
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.