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20(x+1)2=5
We move all terms to the left:
20(x+1)2-(5)=0
We multiply parentheses
40x+40-5=0
We add all the numbers together, and all the variables
40x+35=0
We move all terms containing x to the left, all other terms to the right
40x=-35
x=-35/40
x=-7/8
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