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= 2x - 6y + 2xy - 2xy + 3x
= 2x + 3x + 2xy - 2xy - 6y
= (2+3)x + (2-2)xy - 6y
= 5x + 0xy - 6y
= 5x + 0 - 6y
= 5x - 6y
Semoga membantu... ^_^
= (2 × x) (2 × -3y) (2 × xy) - 2xy + 3x
= 2x - 6y + 2xy - 2xy + 3x
= 2x + 3x - 6y + 2xy - 2xy
= 5x - 6y