81=(x-1)2

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Solution for 81=(x-1)2 equation: 



81=(x-1)2

We move all terms to the left:

81-((x-1)2)=0



We calculate terms in parentheses: -((x-1)2), so:

(x-1)2

We multiply parentheses

2x-2

Back to the equation:

-(2x-2)



We get rid of parentheses

-2x+2+81=0

We add all the numbers together, and all the variables

-2x+83=0

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

-2x=-83

x=-83/-2

x=41+1/2

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