x2-2xy-8y2-x-14y-6求因式分解

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x2-2xy-8y2-x-14y-6求因式分解
x2-2xy-8y2-x-14y-6求因式分解

x2-2xy-8y2-x-14y-6求因式分解
x^2--2xy--8y^2--x--14y--6
=(x-4y)(x+2y)+(2x-8y)-3x-6y-6
=(x-4y)(x+2y)+2(x-4y)-3x-6y-6
=(x-4y)(x+2y+2)-3(x+2y+2)
=(x-4y-3)(x+2y+2)

x2-2xy-8y2-x-14y-6
=(x+2y)(x-4y)-x-14y-6
=(x+2y+2)(x-4y-3)

x²－2xy－8y²－x－14y－6
=(x－4y)(x＋2y)＋(2x－8y)－3x－6y－6
=(x－4y)(x＋2y)＋2(x－4y)－3x－6y－6
=(x－4y)(x＋2y＋2)－3(x＋2y＋2)
=(x－4y－3)(x＋2y＋2)

已知X2+Y2+8X+6Y+25=0 求代数式X2++XY+4Y2分之X2-4Y2 减X+2Y分之X的值 X2+Y2+8X+6Y+25=0 求代数式(x2-4y2/x2+4xy+4y2)-x/x+2y x2-2xy-8y2-x-14y-6求因式分解 若X2+Y2-2X-6Y+10=0 ,求（x2-y2)/xy的值 若x/y=2,求x2-2xy-3y2/x2-6xy-7y2的值 若2分之x=3分之y,求x2-6xy-7y2分之x2-2xy-3y2 已知X2-2x+y2+6y+10=0,求（x2-2xy）/(xy+y2)的值 已知：x2-y2=16,x+y=2,求：3x-3y/y2-x2+x2-2xy+y2/x2-y2-x2-x-6/x+2除以(x+y) 已知x2+y2-10x-6y+34=0,求（x-y/x+y）2÷x2-y2/xy×x2+2xy+y2/x2-xy 的值. x2-2xy+y2=4 x2+y2-x-y=6 解不等式x2-2xy+y2=4 x2+y2-x-y=6 解不等式 若X2 +y2 -4x-6y= -13 求分式x2-2y2/2xy的值 已知xy满足x2+y2-6x+2y+10=0,求立方根号x2-y2的值 x2+y2-4x-6y+13=0求分式y2-x2*xy*是除号 2是平方 已知x2+y2+4x-2y+5=0,求x2+2xy+y2值 已知x2+4y2+x2y2-6xy+1=0,求 x4-y4/2x-y 乘 2xy-y2/xy-y2 除以（x2+y2/xy）2乘1/x+y的值 已知x2+4y2+x2y2+1=6xy,则(x4-y4)/(2x2+xy-y2)*(2x-y)/(xy-y2)/(x2+y2/y)2= 已知x/y+y/x=2,求(x2+xy+y2)/(x2-4xy+y2)的值 因式分解:2x2-xy-3y2-6x+14y-8