(2X-Y)²+8XY

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(2X-Y)²+8XY(2X-Y)²+8XY(2X-Y)²+8XY我来给你解答,等我哦(2X-Y)²+8XY=4x²-4xy+y²+8xy=

(2X-Y)²+8XY
(2X-Y)²+8XY

(2X-Y)²+8XY
我来给你解答,等我哦

(2X-Y)²+8XY
=4x²-4xy+y²+8xy
=4x²+4xy+y²
=(2x+y)²