(x²+2x)²+2x(x-2)+1

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(x²+2x)²+2x(x-2)+1(x²+2x)²+2x(x-2)+1(x²+2x)²+2x(x-2)+1 

(x²+2x)²+2x(x-2)+1
(x²+2x)²+2x(x-2)+1

(x²+2x)²+2x(x-2)+1