(x+12)*(x+12)=x*x+20*20

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Solution for (x+12)*(x+12)=x*x+20*20 equation: 



(x+12)(x+12)=x*x+20*20

We move all terms to the left:

(x+12)(x+12)-(x*x+20*20)=0

We add all the numbers together, and all the variables

(x+12)(x+12)-(x*x+400)=0

We get rid of parentheses

(x+12)(x+12)-x*x-400=0

We multiply parentheses ..

(+x^2+12x+12x+144)-x*x-400=0

Wy multiply elements

(+x^2+12x+12x+144)-1x^2-400=0

We get rid of parentheses

x^2-1x^2+12x+12x+144-400=0

We add all the numbers together, and all the variables

24x-256=0

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

24x=256

x=256/24

x=10+2/3

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