(X2-6x+9)-(x2-4x+4)=25

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Solution for (X2-6x+9)-(x2-4x+4)=25 equation: 



(X2-6X+9)-(X2-4X+4)=25

We move all terms to the left:

(X2-6X+9)-(X2-4X+4)-(25)=0

We add all the numbers together, and all the variables

(+X^2-6X+9)-(+X^2-4X+4)-25=0

We get rid of parentheses

X^2-X^2-6X+4X+9-4-25=0

We add all the numbers together, and all the variables

-2X-20=0

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

-2X=20

X=20/-2

X=-10

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