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(2x-1)^2-(x+1)^2=9x(x-3)=3x(3x-1)(x-1)=96
We move all terms to the left:
(2x-1)^2-(x+1)^2-(9x(x-3))=0
We calculate terms in parentheses: -(9x(x-3)), so:We get rid of parentheses
9x(x-3)
We multiply parentheses
9x^2-27x
Back to the equation:
-(9x^2-27x)
-9x^2+(2x-1)^2-(x+1)^2+27x=0
We add all the numbers together, and all the variables
-9x^2+27x+(2x-1)^2-(x+1)^2=0
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