求第六题的详细解答过程
2个回答
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6x²+xy-15y²+4x-25y-10
=(6x²+xy-15y²)+4x-25y-10
=(2x-3y)(3x+5y)+4x-25y-10
=(2x-3y)(3x+5y)+10x-6x-15y-10y-10
=(2x-3y)(3x+5y)+10x-15y-6x-10y-10
=(2x-3y)(3x+5y)+(10x-15y)-(6x+10y)-10
=(2x-3y)(3x+5y)+5(2x-3y)-2(3x+5y)-10
=(2x-3y-2)(3x+5y+5)
=(6x²+xy-15y²)+4x-25y-10
=(2x-3y)(3x+5y)+4x-25y-10
=(2x-3y)(3x+5y)+10x-6x-15y-10y-10
=(2x-3y)(3x+5y)+10x-15y-6x-10y-10
=(2x-3y)(3x+5y)+(10x-15y)-(6x+10y)-10
=(2x-3y)(3x+5y)+5(2x-3y)-2(3x+5y)-10
=(2x-3y-2)(3x+5y+5)
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