X(x+7)=x2

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Solution for X(x+7)=x2 equation: 



X(X+7)=X2

We move all terms to the left:

X(X+7)-(X2)=0

We add all the numbers together, and all the variables

-1X^2+X(X+7)=0

We multiply parentheses

-1X^2+X^2+7X=0

We add all the numbers together, and all the variables

7X=0

X=0/7

X=0

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