x²-3xy-10y²+X+9Y-2因式分解
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x²-3xy-10y²+X+9Y-2因式分解
x²-3xy-10y²+X+9Y-2因式分解
x²-3xy-10y²+X+9Y-2因式分解
x²-3xy-10y²+X+9Y-2=(X-5Y+2)(X+2Y-1) (可用待定系数法)
因式分解:x²-3xy-10y² +x+9y+2
1.(ax+by)²+(bx-ay)²2.(x²-x)²-4(x²-x-1)3.4(x+y)²-9(x-y)²4.(a+b)(a-b)+4(b-1)5.x²+4xy+4y²-2x-4y-36.(x+1)(x+2)(x+3)(x+4)+17,3x²-11x+10
求几道因式分解1.(ax+by)²+(bx-ay)²2.(x²-x)²-4(x²-x-1)3.4(x+y)²-9(x-y)²4.(a+b)(a-b)+4(b-1)5.x²+4xy+4y²-2x-4y-36.(x+1)(x+2)(x+3)(x+4)+17,3x²-11x+10
设x²+xy=3,xy+y²=2,求2x²-xy-3y²的值
已知x²+xy=3,xy+y²=-2,则2x²-xy-3y²的值为多少?
因式分解x²+xy-6y²
若x²+xy-2y²=0,则x²+3xy+y²/x²+y²
x²+xy-2y²=0则x²+3xy+y²/x²+y²
问已知x²+y²=7,xy=-2,求5x²-3xy-4y²-11xy-7x²+2y²的值那些&sup都是平方哈,今晚要用
(x+3y)²+(2x+6y)(3y-4x)+(4x-3y)²还有几题:a四次方-6a²-27—56x³yz+14x²y²z-21xy²z²5m(x-y)²+10n(y-x)³
3y/2x+2y+2xy/x²+xy 2x/x²-64y²-1/x-8y (1/a+1/b)²÷(1/a²-1/b²) (3x&su3y/2x+2y+2xy/x²+xy 2x/x²-64y²-1/x-8y (1/a+1/b)²÷(1/a²-1/b²) (3x²/4y)²×2y/3x+x²/2y²÷2y²/
分解因式4X²+4XY-3Y²-4X+10Y-3
x²-3xy-10y²+X+9Y-2因式分解
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若X分之2=Y分之3,则分式7X²-Y²分之X²-2XY+3Y²
已知x²y²+x²+y²=10xy-16 求x,y