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Easy

Question

Use polynomial identities to multiply the expressions ? open parentheses 4 x squared plus 6 y squared close parentheses open parentheses 4 x squared minus 6 y squared close parentheses

hintHint:

open parentheses a squared minus b squared close parentheses equals left parenthesis a minus b right parenthesis left parenthesis a plus b right parenthesis , where a and b 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: higher degree polynomial expressions.


     Step 1 of 2:
    The given expression is open parentheses 4 x squared plus 6 y squared close parentheses open parentheses 4 x squared minus 6 y squared close parentheses . It is of the form left parenthesis a minus b right parenthesis left parenthesis a plus b right parenthesis where a equals 4 x squared straight & b equals 6 y squared .
    Step 2 of 2:
    Use the identity a equals 4 x squared straight & b equals 6 y squared to find the product. Thus, we have:

    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 4 x squared plus 6 y squared close parentheses open parentheses 4 x squared minus 6 y squared close parentheses equals open parentheses 4 x squared close parentheses squared minus open parentheses 6 y squared close parentheses squared end cell row cell equals 16 x to the power of 4 minus 36 y to the power of 4 end cell end table
    Hence, the product is open parentheses 4 x squared plus 6 y squared close parentheses open parentheses 4 x squared minus 6 y squared close parentheses equals 16 x to the power of 4 minus 36 y to the power of 4
     

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

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