(x+2)²-8(x+2)+16=0

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(x+2)²-8(x+2)+16=0(x+2)²-8(x+2)+16=0(x+2)²-8(x+2)+16=0 

(x+2)²-8(x+2)+16=0
(x+2)²-8(x+2)+16=0

(x+2)²-8(x+2)+16=0