(2a+1)2=9

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Solution for (2a+1)2=9 equation: 



(2a+1)2=9

We move all terms to the left:

(2a+1)2-(9)=0

We multiply parentheses

4a+2-9=0

We add all the numbers together, and all the variables

4a-7=0

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

4a=7

a=7/4

a=1+3/4

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