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A) 2x + 3y
B) 4x2 + 12xy+ 9y2
C) 4x2 + 9y2
D) 4x2 - 12xy +9y2 ​


A 2x 3yB 4x2 12xy 9y2C 4x2 9y2D 4x2 12xy 9y2 class=