4y × 3y = 12y or 12y^2

4y × 3y = 12y or 12y^2 数学题=y(y+3)-4(y+3)2=(y+3)(y-4y-12) y-12/y=? =y(y+3)-4(y+3)²=(y+3)(y-4y-12)怎么算的 y=(y')^3+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^2)^4y-(-2y)^3y^6= 8y-4=12-5y+9y 12y(x-y)^2-8(x-y)^3=? 3x+y=2 -y/x+y=123x+y=2 （-y/x）+y=12 因式分解(x+y)^2y^2-12(x+y)y^2+36y^2-y^4 0.5y(12+4y)=10 0.5y(12+4y)=10 y(y+4)-y(y-3)-9y详细解答 求值:y^n(y^n+9y-12)-3(3Y^n+1-4y^n),其中,y=-3,n=2 y^n(y^n+9y-12)-3(3y^n+1-4y^n),其中y=-3,n=2 已知2x-y/x+3y=2,求代数式4x-2y/x+3y减4x+12y除以2x-y 已知2x-y/x+3y=2,求代数式4x-2y/x+3y减4x+12y/2x-y的值