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(8x+7)2=4
We move all terms to the left:
(8x+7)2-(4)=0
We multiply parentheses
16x+14-4=0
We add all the numbers together, and all the variables
16x+10=0
We move all terms containing x to the left, all other terms to the right
16x=-10
x=-10/16
x=-5/8
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