(1-x)(1+x))=8

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Solution for (1-x)(1+x))=8 equation: 



(1-x)(1+x))=8

We move all terms to the left:

(1-x)(1+x))-(8)=0

We add all the numbers together, and all the variables

(-1x+1)(x+1))-8=0

We multiply parentheses ..

(-1x^2-1x+x+1))-8=0

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