..55555...-2/5(3y+2)=1/10-3/2(y-1)...

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 5y∧2-(y-2)(3y+1)-2(y+1)(y-5) 2y+5/3y-6-y/2=5y-4/2y-4 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) 2(3-2y)+3y =5求y y-(y-1)/2=1-(2y-3)/5 （-2y^2)^3+y·y^5 y-y-1/2=3-y+2/5 解方程y-[3y-1]等于5【y+2] 化简:5(x-y)+2(x+y)-3(x-y) 2y²-3y-5=0 求y 2y=3y+5求y在检验, 2y²-3y-5=0 求y