-9x^2y+36xy^2-3xy提公因式后的另一个因式为

2x²y-3(2xy-xy)-xy -9x^2y+36xy^2-3xy提公因式后的另一个因式为 (9x^2y-6xy^2)/3xy (x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)答案应为-2x-x*x-3x， xy-2{xy-[3x^2y-(4xy^2+0.5xy)]+4x^2y}+6xy^2 （X-3xy+4xy-y）-[-2x-2（xy-3/2xy）-y]+6xy的过程 3xy(3xy-( ))=9x^2y^2-9xy 3xy(x^2y-xy^2+xy)-xy^2(2x^2-6xy+2x)过程 计算：3xy(x²y-xy²+xy)-xy²(2x-xy+2x） ①(9x²y-6xy²)÷3xy ②(3x²y-xy²+2分之1xy)÷(-2分之1xy) x^2-xy-6y^2+3xy+y+2 计算：3xy[2xy-x（y-2）+x] 计算3xy[2xy-x(y-2)+x-1] （-3x^y+2xy)-( )=4x^+xy 化简：3x^2-[5xy-(x^y-3xy)+4x^2y-8xy] x^2-xy/xy-y^2约分 化简：x-y/x+3y÷x^-y^2/x^2+6xy+9y^2-(xy/x+y) 已知：x²-xy=9,xy-y²=5,则x²-2xy+y²=（）,3x²+xy-2y²+（）