(-2x)²×（xy+y²）-5x（x-y)×xy
=4x²(xy+y²)-5x²y(x-y)
=4x³y+4x²y²-5x³y+5x²y²
=9x²y²-x³y
(-2x)²×（xy+y²）-5x（x-y)×xy化简.
1个回答
相关问题
-
化简(5x×2y+5xy-7x)-(4x×2y+5xy-7x)的结果
-
化简：[（x×根号x+x×根号y）/（xy-y²）]-[（x+根号下xy+y）/（x×根号x-y×根号y）]
-
先化简再求值-1/2x²×(2xy²-4x²y²)-4x²y×（-xy
-
化简(3/2x²+xy-3/5y²)×(-4/3x²y²)
-
化简求值：（X×根号X+X×根号y）÷（XY-Y²）-（X+根号XY+Y）÷X×根号X-Y×根号Y,其中X=1
-
化简（x²-y²/xy)²÷（x+y)²×（x/x-y)³求当x=3
-
先化简,再求值.1.-½x²×(2xy²-4x²y²)-4x²y×(-xy) ,其中X=2Y=1.2.x³-2x[½x²
-
化简（3X²-XY+Y²）-5(X²-XY+2Y²）
-
化简题 （X-Y)^2×(X^2+XY+Y^2)-(X^3+Y^3)(-X^3+Y^3)
-
comedy数学题目额化简：（x^4-y^4）/（2x^2+xy-y^2）×（2x-y）/（xy-y^2）÷(x^2+y