2x^2-5x-12因式分解bangbangmang

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2x^2-5x-12因式分解bangbangmang2x^2-5x-12因式分解bangbangmang2x^2-5x-12因式分解bangbangmang=2x^2-8x+3x-12=2x(x-4)

2x^2-5x-12因式分解bangbangmang
2x^2-5x-12因式分解bangbangmang

2x^2-5x-12因式分解bangbangmang
=2x^2-8x+3x-12
=2x(x-4)+3(x-4)
=(x-4)(2x+3)

(2x+3)(x-4)

=(2X+3)(X-4)