4=(a/10)2

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Solution for 4=(a/10)2 equation: 



4=(a/10)2

We move all terms to the left:

4-((a/10)2)=0

We add all the numbers together, and all the variables

-((+a/10)2)+4=0

We multiply all the terms by the denominator


-((+a+4*10)2)=0



We calculate terms in parentheses: -((+a+4*10)2), so:

(+a+4*10)2

We add all the numbers together, and all the variables

(a+40)2

We multiply parentheses

2a+80

Back to the equation:

-(2a+80)



We get rid of parentheses

-2a-80=0

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

-2a=80

a=80/-2

a=-40

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