把下列各式因式分解(1)3x³-3x²+9x.(2)-24x²y-1把下列各式因式分解(1)3x³-3x²+9x.(2)-24x²y-12xy²-28y³.(3)-4a³b³+6a²b-2ab (4)-2x³-12xy²+8xy³ (5
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把下列各式因式分解(1)3x³-3x²+9x.(2)-24x²y-1把下列各式因式分解(1)3x³-3x²+9x.(2)-24x²y-12xy²-28y³.(3)-4a³b³+6a²b-2ab (4)-2x³-12xy²+8xy³ (5
把下列各式因式分解(1)3x³-3x²+9x.(2)-24x²y-1
把下列各式因式分解(1)3x³-3x²+9x.(2)-24x²y-12xy²-28y³.(3)-4a³b³+6a²b-2ab (4)-2x³-12xy²+8xy³ (5)-3ma³+6ma²-12ma
把下列各式因式分解(1)3x³-3x²+9x.(2)-24x²y-1把下列各式因式分解(1)3x³-3x²+9x.(2)-24x²y-12xy²-28y³.(3)-4a³b³+6a²b-2ab (4)-2x³-12xy²+8xy³ (5
(1)3x³-3x²+9x.=3x(x²-x+9)(2)-24x²y-12xy²-28y³=-4y(6x²+3x+7y²)(3)-4a³b³+6a²b-2ab =2ab(-2a²b²+3a-1)
(4)-2x³-12xy²+8xy³ =-2x(x²+6y²-4y³)(5)-3ma³+6ma²-12ma=-3ma(a²-2a+4)=-3ma(a-2)²