(1) 5(y+6)(y-1)+4y(y-1)=3y(y+6) 这个怎么解?请写明每一步过程 (2) (2+根号3) x² = (2-根号3) x 怎

计算：[(y+1)/(y^2-4y+3)减去(y-2)/(y^2-6y+9)]除以(y-5)/(y-1) y (3y^2+8y-3)-6y(3y+2y-1)+9y (x+y)(x-y)+4(y-1) -y - y/1-y +1 解3y+5/3y-6=1/2+5y-4/2y-4 计算（3y-1)(2y+3)-(6y-5)(y-4) （3y-1)(2y-3)+(6y-5)(y-4)=?xie (3y－1)(2y一3)十(6y一5)(y一4) （3y-1)(2y-3)+(6y+5)(y-4)=? [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),'.') 2(y-4)(3y+2)-5(-3y+7)(y+1),其中y=-1 (4-y)^2-4(1-y)(3+6y) 1/2y+1=4y-2/5-y y''-5y'+6y=3x+1通解 2-（4-y)=6y-2（y+1) 2-(4-y)=6y-2(y+1) (y+3)(4y-1) 通分 y+3/y*y-6y+9,1/2y+6,y-1/y*y-9