(y/3)-1=(-5+7y)/3

2(y-4)(3y+2)-5(-3y+7)(y+1),其中y=-1 3(y-3)-5(1+y)=7(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 4(2y+5)-3y=7(y-5)+4(2y+1) 4（5—2y)+7(y+1)=3(4y-1)+17求y 4*（5—2y)+7(y+1)=3(4y-1)+17求y [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),'.') (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) 5(y-2)-7(y+3)=11(y+4) y-(y-1)/2=1-(2y-3)/5 y''-5y'+6y=3x+1通解 y-y-1/2=3-y+2/5 y=(y')^3+y'