18=(x-9)2

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Solution for 18=(x-9)2 equation: 



18=(x-9)2

We move all terms to the left:

18-((x-9)2)=0



We calculate terms in parentheses: -((x-9)2), so:

(x-9)2

We multiply parentheses

2x-18

Back to the equation:

-(2x-18)



We get rid of parentheses

-2x+18+18=0

We add all the numbers together, and all the variables

-2x+36=0

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

-2x=-36

x=-36/-2

x=+18

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