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(x+3)2=3
We move all terms to the left:
(x+3)2-(3)=0
We multiply parentheses
2x+6-3=0
We add all the numbers together, and all the variables
2x+3=0
We move all terms containing x to the left, all other terms to the right
2x=-3
x=-3/2
x=-1+1/2
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