Maths-
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Easy

Question

Use polynomial identities to multiply the expressions ? open parentheses x squared plus y to the power of 6 close parentheses squared

hintHint:

left parenthesis x plus a right parenthesis squared equals x squared plus 2 a x plus a squared, where a and x can be real values, variables or multiples of both. We are asked to use polynomial identities to find the product of the expression.

The correct answer is: (x2 + y6)2 = x4 + 2x2y6 + y12


     Step 1 of 2:
    The given expression is open parentheses x squared plus y to the power of 6 close parentheses squared . It is of the form left parenthesis x plus a right parenthesis squared where x equals x squared straight & a equals y to the power of 6 .
    Step 2 of 2:
    Use the identity left parenthesis x plus a right parenthesis squared equals x squared plus 2 a x plus a squared to find the product of the expression,

    table attributes columnalign right left right left right left right left right left right left columnspacing 0em 2em 0em 2em 0em 2em 0em 2em 0em 2em 0em end attributes row cell open parentheses x squared plus y to the power of 6 close parentheses squared equals open parentheses x squared close parentheses squared plus 2 open parentheses x squared close parentheses open parentheses y to the power of 6 close parentheses plus open parentheses y to the power of 6 close parentheses squared end cell row cell equals x to the power of 4 plus 2 x squared y to the power of 6 plus y to the power of 12 end cell end table
    Thus, the product is: open parentheses x squared plus y to the power of 6 close parentheses squared equals x to the power of 4 plus 2 x squared y to the power of 6 plus y to the power of 12

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

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