(2x-2) (x-1) = 0 will change this into a quadratic equation of one variable

(2x-2)(x-1)=0
2(x-1)(x-1)=0
2 is not equal to 0, both sides divide by 2
(x-1)(x-1)=0
Simplify
x^2-2x+1=0
I hope it can help you

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