2-(4-y)=6y-2(y+1)
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2-(4-y)=6y-2(y+1)2-(4-y)=6y-2(y+1)2-(4-y)=6y-2(y+1)y=0要动脑筋哦~2-(4-y)=6y-2(y+1)2-4+y=6y-2y-2y-6y+2y=-2
2-(4-y)=6y-2(y+1)
2-(4-y)=6y-2(y+1)
2-(4-y)=6y-2(y+1)
y=0
要动脑筋哦~
2-(4-y)=6y-2(y+1)
2-4+y=6y-2y-2
y-6y+2y=-2-2+4
-3y=0
y=0
化简 2-4 y=6y-2y-2
y-2=4y-2
y=4y
y=0
(y^2)^4y-(-2y)^3y^6=
2-（4-y)=6y-2（y+1)
2-(4-y)=6y-2(y+1)
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)
(y-2)(y^2-6y-9)-y(y^2-2y-15),其中y=1/2.先化简再求值.
方程y''-4y'+13y=0的通解方程y''=(1+y'*y')/2y的通解
y (3y^2+8y-3)-6y(3y+2y-1)+9y
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）
[T,Y]=ode45(@rigid,[0 1],[rand(15,1)]);plot(T,Y(:,1),'-',T,Y(:,2),'-.',T,Y(:,3),'.',T,Y(:,4),'-',T,Y(:,5),'-.',T,Y(:,6),'.',T,Y(:,7),'-',T,Y(:,8),'-.',T,Y(:,9),'.',T,Y(:,10),'-',T,Y(:,11),'-.',T,Y(:,12),'-.',T,Y(:,13),'.',T,Y(:,14),'-',T,Y(:,15),'.')
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