(a+2)2+8=30

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Solution for (a+2)2+8=30 equation: 



(a+2)2+8=30

We move all terms to the left:

(a+2)2+8-(30)=0

We add all the numbers together, and all the variables

(a+2)2-22=0

We multiply parentheses

2a+4-22=0

We add all the numbers together, and all the variables

2a-18=0

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

2a=18

a=18/2

a=9

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