初一因式分解(就一道)x^2+2xy-8y^2+2x+14y-3

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初一因式分解(就一道)x^2+2xy-8y^2+2x+14y-3初一因式分解(就一道)x^2+2xy-8y^2+2x+14y-3初一因式分解(就一道)x^2+2xy-8y^2+2x+14y-3x^2+

初一因式分解(就一道)x^2+2xy-8y^2+2x+14y-3
初一因式分解(就一道)
x^2+2xy-8y^2+2x+14y-3

初一因式分解(就一道)x^2+2xy-8y^2+2x+14y-3
x^2+2xy-8y^2+2x+14y-3
=(x^2+2xy-8y^2)-(x-2y)+3(x+4y)-3
=(x-2y)(x+4y)-(x-2y)+3(x+4y)-3
=(x-2y+3)(x+4y-1).