[(2xy-3)(2xy+3)+(xy+3)^2]/(-xy)

来源：学生作业帮助网编辑：作业帮时间：2024/05/02 16:45:13

[(2xy-3)(2xy+3)+(xy+3)^2]/(-xy)
[(2xy-3)(2xy+3)+(xy+3)^2]/(-xy)

[(2xy-3)(2xy+3)+(xy+3)^2]/(-xy)
=(4X^2Y^2-9+X^2Y^2+6XY+9)/(-XY)
=(5X^2Y^2+6XY)/(-XY)
=-5XY-6

(-3xy+2xy)-(4xy+xy) 3xy-3xy-xy+2yx 3xy-4xy-（-2xy） 3xy-4xy-（-2xy） 2xy.(-3xy)÷(xy) 2xy-xy-(-3xy)= [(2xy-3)(2xy+3)+(xy+3)^2]/(-xy) xy－3xy＋2xy－xy 3xy^2*(-2xy) 3xy(x^2-xy^2+xy)-xy^2(2x^2-xy+2x) 3(xy－xy)－2(xy＋xy)＋3xy (-4xy^3)×（-xy）+（-3xy^2）^2 （-3xy^2)^2+(-4xy^3)*(-xy)=多少 (-4xy^3)*(-xy)+(-3xy^2)^2 (3xy^2)^2+(-xy^3)(4xy) 1/2xy(2/3xy²-2xy) 3(xy-z)^2-(2xy+z)(-z+2xy) 2x²y-3(2xy-xy)-xy