Question
Use polynomial identities to multiply the expressions ? (7 + 9)2
Hint:
, where x and a can be real values, variables or multiples of both. We are asked to use polynomial identities to multiply the expression.
The correct answer is: (7 + 9)2 = 256
Step 1 of 2:
The given expression is 
. This is of the form 
Step 2 of 2:
Use the identity to get the product of the expression;
Thus, the product is 
Thus, the product is
Polynomial identities are used to reduce the time and space while you solve higher degree polynomial expressions.
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Use polynomial identities to multiply the expressions ? (3x - 7)2
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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 multiply the expressions ? (x + 6)2
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Use polynomial identities to multiply the expressions ? (x - 9)(x - 9)
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How could you use polynomial identities to factor the expression 
.
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How many terms will there be in the expansion of the expression 
. Explain how you know
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How many terms will there be in the expansion of the expression . Explain how you know
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in the form 
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The sum of the coefficients in the expansion of the expression (a + b)n is 64. Use Pascal’s triangle to find the value of n.
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The sum of the coefficients in the expansion of the expression (a + b)n is 64. Use Pascal’s triangle to find the value of n.
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