(x^2y-9y)/(xy+3y)
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(x^2y-9y)/(xy+3y)
(x^2y-9y)/(xy+3y)
(x^2y-9y)/(xy+3y)
(x^2y-9y)/(xy+3y)
=y(x^2-9) / y(x+3)
=y(x-3)(x+3) / y(x+3)
=x-3
(x^2y-9y)/(xy+3y)
化简:x-y/x+3y÷x^-y^2/x^2+6xy+9y^2-(xy/x+y)
X^Y-2XY^2+y^3
(x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)答案应为-2x-x*x-3x,
因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y)
9x^2y+y^3-6xy^2因式分解
因式分解6xy^2-9x^2y-y^3
6xy^2-9x^2y-y^3因式分解
x^2y-6xy^2+9y^3
6xy-9x^2y-y^3 因式分解
(x+y)(x-y)-(2xy+3y)平方平方是(2xy+3y)的
-x-3xy+y
x^2-xy-6y^2+3xy+y+2
1、(-7x^y)(2x^y-3xy^3+xy) 2、((x-y)^6)/((y-x)^3)/(x-y)
数学题(x+y+3)(x^2+y^2+2xy-3x-3y+9)
(X-9y)/(6xy^2-(x+3y)/(9x^2y)
2x-3y/xy×2x^2y^2/6x-9y
3x*x+5xy-2y*y+x+9y-4