A=(x+2)2

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Solution for A=(x+2)2 equation: 



=(A+2)2

We move all terms to the left:

-((A+2)2)=0



We calculate terms in parentheses: -((A+2)2), so:

(A+2)2

We multiply parentheses

2A+4

Back to the equation:

-(2A+4)



We get rid of parentheses

-2A-4=0

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

-2A=4

A=4/-2

A=-2

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