1/4x^2-1/12y^2,5/x+2y-x,a-9/a+6
计算:(1)y/4x²y-1/12y²;(2)2/x+y-x+3/x+y(3)a²/a+3
1个回答
相关问题
-
1.计算(a^2+a+1)(a^2-a+1) 2.计算(x-y)(x+y)+(3x-2y)(2x+y)-x(6x-y)
-
(1) (3x-2y)(y-3x)-(2x-y)(3x+y) (2) (3x+2y+4)(5x-2y-1) 计算
-
计算:1、(1+a)(a-1)(a²+1)2、(x+y)(x-y)+(x-y)²-x(x-3y)
-
1.(2a+3b)(3a-4b) 2.(2x-3y)(3y-2x)-(4y-3x)(3x-4y) 3.(x+3y)(x-
-
计算:[3a/4y]•2y23a2=[y/2a][y/2a];x2−1y÷[x+1/y]=______;[b/3a]+[
-
计算题(整式)(X+3).(X+4)=(Y-1).(Y-2)=(Y+2).(Y-2)=(2A-1).(3A-2)=(2A
-
因式分解:(1)x2-(y2-2y+1);(2)a2(x-y)+b2(y-x);(3)4x3y+4x2y2+xy3;(4
-
二元一次方程,1.{3(x-1)=y+5 {5(y-a)=3(x+5)2.{2/x+3/y=12/13{3/x-4/y=
-
计算:2X(1/2X²-1)-3X(1/3X²+2/3)因式分解:4+12(x-y)+9(x-y)&
-
计算(1) 2(a-4)(a+3)-(2a-1)(a-1) (2) 5(y-x)³×3x³(x-y)