3/y+2-3/4y-1=2-6/2y+5

(y^2)^4y-(-2y)^3y^6= y (3y^2+8y-3)-6y(3y+2y-1)+9y 常微分方程的通解dy/dx=(x-y+1)/(x+y-3)y^4=2y^n+y=0y''+6y'+9y=e^(-3x)y''+y'-2y=4e^(2x) 通分 y+3/y*y-6y+9,1/2y+6,y-1/y*y-9 2y+5/3y-6-y/2=5y-4/2y-4 (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 4y(y-1)=3 3y^2+2√6y=-2 解3y+5/3y-6=1/2+5y-4/2y-4 {3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1 （3y-1)(2y-3)+(6y-5)(y-4)=?xie （3y-1)(2y-3)+(6y+5)(y-4)=? （y+1)分之（2y+3)=（3y+4）分之（6y+7）