因式分解:4x^2-5xy-6y^2+10x+13y-6

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因式分解:4x^2-5xy-6y^2+10x+13y-6

因式分解:4x^2-5xy-6y^2+10x+13y-6
因式分解:4x^2-5xy-6y^2+10x+13y-6

因式分解:4x^2-5xy-6y^2+10x+13y-6
4x^2-5xy-6y^2+10x+13y-6
=(4x+3y)(x-2y)+10x+13y-6
4x+3y -2
×
x-2y 3
所以
原式=(4x+3y -2)(x-2y+ 3)

4x^2-5xy-6y^2+10x+13y-6
解,得:
==(x+2y)(2x-3y)+(2x+2)(5x+3)

=(4x+3y)(x-2y)-2(x-2y)+(12x+9y-6)
=(4x+3y-2)(x-2y)+3(4x+3y-2)
=(4x+3y-2)(x-2y+3)