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(2x-4)(x+6)=2x^2-16x+6
We move all terms to the left:
(2x-4)(x+6)-(2x^2-16x+6)=0
We get rid of parentheses
-2x^2+(2x-4)(x+6)+16x-6=0
We multiply parentheses ..
-2x^2+(+2x^2+12x-4x-24)+16x-6=0
We get rid of parentheses
-2x^2+2x^2+12x-4x+16x-24-6=0
We add all the numbers together, and all the variables
24x-30=0
We move all terms containing x to the left, all other terms to the right
24x=30
x=30/24
x=1+1/4
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