[(2X-3Y)²-(2X-Y)(2X+Y)]÷2Y
=(4X²-12XY+9Y²-4X²+Y²)÷2Y
=(-12XY+10Y²)÷2Y
=-6X+5Y
(3X＋2Y)(3X－2Y)－(2X－Y)²－(5X－Y)(X＋2Y)
=9X²-4Y²-4X²+4XY-Y²-5X²-9XY+2Y²
=-3Y²-5XY
整式运算 [(2X-3Y)²-(2X-Y)(2X+Y)]÷2Y (3X＋2Y)(3X－2Y)－(2X－Y)&s
1个回答
相关问题
-
[-(2x-y)²-(x+2y)(x-2y)-1/3(x+3y)²]÷(-2/3x)
-
[x(x^2 y^2-xy)-y(x^2-x^3y)]÷3x^2y
-
(3x^/4y)^*2y/3y+x^2y^÷2y^/x ?
-
(x+y)(x-y)+(x-y)^2-(6x^2×y÷2y-2xy^2÷2y)其中x=-3,y=1/3
-
数学分式混合运算：（3x²/4y)² × 2y/3x+x²/2y²÷2y
-
[（3x+2y）（3x-2y）-（x+2y）（5x-2y）]÷4x．
-
1.【x(x^2y^2-xy)-y(x^2-x^3y)]÷3x^2y
-
计算：[x（x2y2-xy）-y（x2-x3y）]÷3x2y．
-
x*（9x^3y-3xy^2）÷（-3x^2y）= 【（x+y）^2-（x-y）^2】÷（-4xy）=
-
已知x:y=2:3,求(x^2-y^2/xy)÷[(x+y)×(x-y/x)^3]÷(x/y^2)