因式分解:(1)x²+x (2)4x²-9y (3)x²y-4y2x²-8
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因式分解:(1)x²+x (2)4x²-9y (3)x²y-4y2x²-8
因式分解:(1)x²+x (2)4x²-9y (3)x²y-4y
2x²-8
因式分解:(1)x²+x (2)4x²-9y (3)x²y-4y2x²-8
(1) x(x+1)
(2) (2x-3y)(2x+3y)
(3) (x+2)(x-2)y
2(x+2)(x-2)
1) x(x+1)
(1)x(x+1)
(2)(2X+3Y)(2X-3Y)
(3)Y(X+2)(X-2)