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(y+1)^2-20(y+1)+64=0
We multiply parentheses
(y+1)^2-20y-20+64=0
We add all the numbers together, and all the variables
-20y+(y+1)^2+44=0
We move all terms containing y to the left, all other terms to the right
-20y+(y+1)^2=-44
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