(2a+1)2+4=0

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Solution for (2a+1)2+4=0 equation: 



(2a+1)2+4=0

We multiply parentheses

4a+2+4=0

We add all the numbers together, and all the variables

4a+6=0

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

4a=-6

a=-6/4

a=-1+1/2

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