smcgalin smcgalin

13-01-2022
Mathematics

contestada

Find the product mentally.
[(x + 1)(x - 1)]2

Find the product mentally x 1x 12 class=

Respuesta :

goddessboi goddessboi

13-01-2022

Answer:

x²-1

Step-by-step explanation:

Because the product is a difference of squares, all you have to do is do x*x=x² and add that to (+1)(-1)=-1, getting you x²-1, so that's how you could do it mentally.

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