12x^2+xy-6y^2答案是(3x+3y)(4x-2y)吗?
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12x^2+xy-6y^2答案是(3x+3y)(4x-2y)吗?
12x^2+xy-6y^2
答案是(3x+3y)(4x-2y)吗?
12x^2+xy-6y^2答案是(3x+3y)(4x-2y)吗?
12X^2 XY-6Y^2 =(3x-2y)(4x 3y)
(x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)答案应为-2x-x*x-3x,
12x^2+xy-6y^2答案是(3x+3y)(4x-2y)吗?
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