5y∧2-(y-2)(3y+1)-2(y+1)(y-5)

5y∧2-(y-2)(3y+1)-2(y+1)(y-5) y(y-2)²-y(y+3)(y-5) y=1/2 化简求值 y(y-2)²-y(y+3)(y-5) y=1/2 化简求值 y(y-2)²-y(y+3)(y-5) y=1/2 化简求值 y (3y^2+8y-3)-6y(3y+2y-1)+9y 解方程3y^2-(2y+1)(y-2)=(y-5)(y-1) 2(y-4)(3y+2)-5(-3y+7)(y+1),其中y=-1 解方程：3y^2-(2y+1)(y-1)=(y-5)(y+1) 解方程：3y²-(2y+1)(y-2)=(y-5)(y+1) 通分 y+3/y*y-6y+9,1/2y+6,y-1/y*y-9 y-(y-1)/2=1-(2y-3)/5 y-y-1/2=3-y+2/5 解方程y-[3y-1]等于5【y+2] 计算：[(y+1)/(y^2-4y+3)减去(y-2)/(y^2-6y+9)]除以(y-5)/(y-1) y-1/y-2 - y-3/y-4=y-2/y-3 - y-4/y-5一共有四个分数哦~希望可以快一点~谢谢! 4y²-4y/y²-2y+1÷(y+1/y-1-y-1/y+1)÷(3y+3) 2y+5/3y-6-y/2=5y-4/2y-4 (y-4)(3y+2)-(3y-7)(2y+1),其中y=4/3