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(2x+2+x)2=154
We move all terms to the left:
(2x+2+x)2-(154)=0
We add all the numbers together, and all the variables
(3x+2)2-154=0
We multiply parentheses
6x+4-154=0
We add all the numbers together, and all the variables
6x-150=0
We move all terms containing x to the left, all other terms to the right
6x=150
x=150/6
x=25
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