Y=(x-7)2

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Solution for Y=(x-7)2 equation: 



=(Y-7)2

We move all terms to the left:

-((Y-7)2)=0



We calculate terms in parentheses: -((Y-7)2), so:

(Y-7)2

We multiply parentheses

2Y-14

Back to the equation:

-(2Y-14)



We get rid of parentheses

-2Y+14=0

We move all terms containing Y to the left, all other terms to the right

-2Y=-14

Y=-14/-2

Y=+7

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