3y-2＜1+4y 2-3(y+2)≥2(y-1)

y (3y^2+8y-3)-6y(3y+2y-1)+9y 3y-2＜1+4y 2-3(y+2)≥2(y-1) (3y+2)(y-4)-3(y-2)(y-3) (y^2)^4y-(-2y)^3y^6= 4y²-4y/y²-2y+1÷(y+1/y-1-y-1/y+1)÷(3y+3) 通分 y+3/y*y-6y+9,1/2y+6,y-1/y*y-9 (y-4)(3y+2)-(3y-7)(2y+1),其中y=4/3 2(y-4)(3y+2)-5(-3y+7)(y+1),其中y=-1 解分式方程（y+3)/(y^2+y)-1/(1-y)=4/y要过程 数学题=y(y+3)-4(y+3)2=(y+3)(y-4y-12) 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-1/2-y+1/3≥y怎么做 (4-y)^2-4(1-y)(3+6y) 4y的平方-3y-1=y-2 解不等式组2y+3小于9-y,6y-1＜5,3y+7≥2-y 计算：[(y+1)/(y^2-4y+3)减去(y-2)/(y^2-6y+9)]除以(y-5)/(y-1)