5y-3=2y+4-6y y=?
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5y-3=2y+4-6y y=?
5y-3=2y+4-6y y=?
5y-3=2y+4-6y y=?
=x^2-5xy+6y^2-(9x^2-12xy+4y^2) =<4x^2-(5y-3)^2> = -8x=(2x)^2-(5y-3)^2 =4x^4-25y^2+30y-9 2 (x-2y)(x-3y)-(
7/9
(y^2)^4y-(-2y)^3y^6=
2y+5/3y-6-y/2=5y-4/2y-4
2(y-4)(3y+2)-5(-3y+7)(y+1),其中y=-1
先化简,在求值:6y-(y+2分之y + 2-y分之y)除以y³-4y-2y²+8分之y,其中y= -2分之5先化简,在求值:6y-(y+2分之y + 2-y分之y)除以y³-4y-2y²+8分之y,其中y= -2分之5
解3y+5/3y-6=1/2+5y-4/2y-4
5y-3=2y+4-6y y=?
解方程:(y+4)/5+y+6=(y+8)/2-(y+4)/3要过程
(3y-1)(2y-3)+(6y-5)(y-4)=?xie
(3y-1)(2y-3)+(6y+5)(y-4)=?
4x-2y-6y*-y-3x+5y* *=2 就是平方
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
[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(5y-2)=6-4y 解方程
5(y-2)-7(y+3)=11(y+4)
解方程:2y+5/3y-6 — y/2 = 5y-4/2y-4