X²+xy²-x²-y²-3xy+2x+2y-1分解因式
来源:学生作业帮 编辑:大师作文网作业帮 分类:数学作业 时间:2024/11/17 20:10:33
X²+xy²-x²-y²-3xy+2x+2y-1分解因式
题目出错了么?
是不是 x²y+xy²-x²-y²-3xy+2x+2y-1?
x²y+xy²-x²-y²-3xy+2x+2y-1
=(x²y+xy²-xy)-(x²+y²+2xy-2x-2y+1
=xy(x+y-1)-[(x+y)²-2(x+y)+1]
=xy(x+y-1)-(x+y-1)²
=(x+y+1)(xy-x-y+1)
=(x+y+1)[(xy-x)-(y-1)]
=(x+y+1)[x(y-1)-(y-1)]
=(x+y+1)(x-1)(y-1)
不好意思,看到题目太晚了,
是不是 x²y+xy²-x²-y²-3xy+2x+2y-1?
x²y+xy²-x²-y²-3xy+2x+2y-1
=(x²y+xy²-xy)-(x²+y²+2xy-2x-2y+1
=xy(x+y-1)-[(x+y)²-2(x+y)+1]
=xy(x+y-1)-(x+y-1)²
=(x+y+1)(xy-x-y+1)
=(x+y+1)[(xy-x)-(y-1)]
=(x+y+1)[x(y-1)-(y-1)]
=(x+y+1)(x-1)(y-1)
不好意思,看到题目太晚了,
计算:(1).(-2xy²)*(3x²y)²
1-x²+2xy-y²
分解因式:4x²+2xy-2y²+4x+7y-3=
x²-3xy-10y²+x+9y-2如何分解因式
分解因式:x²-3xy+2y²+x-2
分解因式(2X²-3X+1)²-22X²+33X-1 (x+y-2XY)(x+y-2)+(
分解因式3x²y-6xy²+3y²
分解因式:x²-2y²-xy+x+5y-2
分解因式 急2a²x-2ax+1\2x?x²-3xy+2y²?分解因式
分解因式 xy²-2xy+2y-4= 9x²-y²-4y-4= 4xy²-4x&
x²-4y²/x²+2xy+y²÷x+2y/2x²+2xy
因式分解 x²-3xy+2y²+x-2