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Mathematics 20 Online
OpenStudy (anonymous):

what is the product of [(x+1)(x-1)]^2

OpenStudy (anonymous):

foil the ones in (), then expand by squaring it

OpenStudy (anonymous):

then multiply them again

OpenStudy (anonymous):

\[[(x+1)(x-1)]^2 = (x^2-1)^2\]

OpenStudy (anonymous):

thank you so much

OpenStudy (anonymous):

expand it then foil it again \[\huge (x^2-1)(x^2-1)\]

OpenStudy (anonymous):

\[\huge x^2-1x^2-x^2+1\]

OpenStudy (anonymous):

combine like term

OpenStudy (anonymous):

so is it x^4-2x^2+1

OpenStudy (anonymous):

correct

OpenStudy (anonymous):

thank you so much

OpenStudy (anonymous):

welcome

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