(x+7)(x+7)=x*x-7

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Solution for (x+7)(x+7)=x*x-7 equation: 



(x+7)(x+7)=x*x-7

We move all terms to the left:

(x+7)(x+7)-(x*x-7)=0

We get rid of parentheses

(x+7)(x+7)-x*x+7=0

We multiply parentheses ..

(+x^2+7x+7x+49)-x*x+7=0

Wy multiply elements

(+x^2+7x+7x+49)-1x^2+7=0

We get rid of parentheses

x^2-1x^2+7x+7x+49+7=0

We add all the numbers together, and all the variables

14x+56=0

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

14x=-56

x=-56/14

x=-4

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