(y+3)(1-3y)=-1+2y^2;(2+根号3)y^2=(2-根号3)y;(3x+2)^2-2x^2=0因式分解解方程

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 2(y-4)(3y+2)-5(-3y+7)(y+1),其中y=-1 (y-4)(3y+2)-(3y-7)(2y+1),其中y=4/3 解方程：3y^2-(2y+1)(y-1)=(y-5)(y+1) 解方程3y^2-(2y+1)(y-2)=(y-5)(y-1) 解方程：3y²-(2y+1)(y-2)=(y-5)(y+1) 解分式方程（y+3)/(y^2+y)-1/(1-y)=4/y要过程 Y(Y-1)-(y-2)*(y+3)=2 Y的解是多少? 通分 y+3/y*y-6y+9,1/2y+6,y-1/y*y-9 y-(y-1)/2=1-(2y-3)/5 2(y-1)=2y-3(y+1) 解方程3y(y-1)=2(1-y) y-y-1/2=3-y+2/5 y^3+(x+2)e^y=1 y''(-2) 3Y-2=Y+1+6Y