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(w+2)^2=2w^2+5w-26
We move all terms to the left:
(w+2)^2-(2w^2+5w-26)=0
We get rid of parentheses
-2w^2+(w+2)^2-5w+26=0
We add all the numbers together, and all the variables
-2w^2-5w+(w+2)^2+26=0
We move all terms containing w to the left, all other terms to the right
-2w^2-5w+(w+2)^2=-26
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