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(2-x)^(2)+2-x-20=0
We add all the numbers together, and all the variables
(-1x+2)^2-x+2-20=0
We add all the numbers together, and all the variables
-1x+(-1x+2)^2-18=0
We move all terms containing x to the left, all other terms to the right
-1x+(-1x+2)^2=18
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