(3x²y-2x+1)(-2xy)等于多少?
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(3x²y-2x+1)(-2xy)等于多少?
![(3x²y-2x+1)(-2xy)等于多少?](/uploads/image/z/18377343-63-3.jpg?t=%EF%BC%883x%26sup2%3By-2x%2B1%29%28-2xy%29%E7%AD%89%E4%BA%8E%E5%A4%9A%E5%B0%91%3F)
(3x²y-2x+1)(-2xy)
=-6x^3y^2+4x^2y-2xy
=-6x^3y^2+4x^2y-2xy
计算:(1).(-2xy²)*(3x²y)²
1-x²+2xy-y²
(x+y-2xy)(x+y-2)+(1-xy)²
越快越好(1)(xy²+3)(xy²+3)-2x(-x+y)(2)(x+2)(x²+4)(
因式分解 x²-3xy+2y²+x-2
2x²-xy+3x-y+1因式分解
已知x/y=3,求x²+2xy-3y²/x²-2xy+y²
已知x/y=3,求x²+2xy-3y²/x²-xy+y²的值
|x+2y+3|+(2x+y)²=0求x²-xy+y²
x/y=2,求分式x²-xy+3y²/x²+xy+6y²
3y/2x+2y+2xy/x²+xy 2x/x²-64y²-1/x-8y (1/a+1/b
当k等于多少时,多项式2x²-7kxy+7xy+3y²+5y中不含xy项