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