因式分解 2x2+xy-y2-4x+5y-6 x2-y2+a2-b2+2ax+2by 3x2+5xy-2y2+x+9y-
来源:学生作业帮 编辑:神马作文网作业帮 分类:数学作业 时间:2024/10/07 09:16:56
因式分解 2x2+xy-y2-4x+5y-6 x2-y2+a2-b2+2ax+2by 3x2+5xy-2y2+x+9y-4 b4-2b2-8
2x2+xy-y2-4x+5y-6
x2-y2+a2-b2+2ax+2by
3x2+5xy-2y2+x+9y-4
b4-2b2-8
2x2+xy-y2-4x+5y-6
x2-y2+a2-b2+2ax+2by
3x2+5xy-2y2+x+9y-4
b4-2b2-8
2x2+xy-y2-4x+5y-6
=(2x-y)(x+y)-4x+5y-6
=(2x-y+2)(x+y-3)
x2-y2+a2-b2+2ax+2by
=(x-a)²-(y-b)²
=(x-a-y+b)(x-a+y-b)
3x2+5xy-2y2+x+9y-4
=(3x-y)(x+2y)+x+9y-4
=(3x-y+4)(x+2y-1)
b4-2b2-8
=(b²-4)(b²+2)
=(b-2)(b+2)(b²+2)
=(2x-y)(x+y)-4x+5y-6
=(2x-y+2)(x+y-3)
x2-y2+a2-b2+2ax+2by
=(x-a)²-(y-b)²
=(x-a-y+b)(x-a+y-b)
3x2+5xy-2y2+x+9y-4
=(3x-y)(x+2y)+x+9y-4
=(3x-y+4)(x+2y-1)
b4-2b2-8
=(b²-4)(b²+2)
=(b-2)(b+2)(b²+2)
x2-xy-2y2-x+5y-2因式分解
2x2+xy-3y2+x+4y-1因式分解
因式分解 x2+xy-2y2-x+7y-6
25(x2+ 2xy +y2)-9(x2-2xy+y2)因式分解.x2,y2是x平方,y平方的意思.2xy就是2xy.快
已知:x=3,y=-5,x2-2xy+y2/x2-y2的值是
2x2+xy-y2-5x+4y-3如何因式分解?
已知2x=3y,求xy/(x2+y2)-y2/(x2-y2)的值
因式分解a2x2+b2y2-2ax-2by+2abxy,x3+6x2+11x+6.x2+6xy+9y2-16x-48y-
x2-xy-2y2-x+5y-2
问:因式分解2x2-3xy+y2+5x-y-2
已知x2+4y2+x2y2-6xy+1=0,求 x4-y4/2x-y 乘 2xy-y2/xy-y2 除以(x2+y2/x
若X2+Y2-2X-6Y+10=0 ,求(x2-y2)/xy的值