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x(x+2)-x(x-6)=10-12
We move all terms to the left:
x(x+2)-x(x-6)-(10-12)=0
We add all the numbers together, and all the variables
x(x+2)-x(x-6)-(-2)=0
We add all the numbers together, and all the variables
x(x+2)-x(x-6)+2=0
We multiply parentheses
x^2-x^2+2x+6x+2=0
We add all the numbers together, and all the variables
8x+2=0
We move all terms containing x to the left, all other terms to the right
8x=-2
x=-2/8
x=-1/4
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