(y^2)^4y-(-2y)^3y^6=
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(y^2)^4y-(-2y)^3y^6=(y^2)^4y-(-2y)^3y^6=(y^2)^4y-(-2y)^3y^6=(y^2)^4y-(-2y)^3y^6=y^8*y+8y^3y^6=y^9+8y
(y^2)^4y-(-2y)^3y^6=
(y^2)^4y-(-2y)^3y^6=
(y^2)^4y-(-2y)^3y^6=
(y^2)^4y-(-2y)^3y^6
=y^8*y+8y^3y^6
=y^9+8y^9
=9y^9
(y^2)^4y-(-2y)^3y^6=
2y+5/3y-6-y/2=5y-4/2y-4
数学题=y(y+3)-4(y+3)2=(y+3)(y-4y-12)
y (3y^2+8y-3)-6y(3y+2y-1)+9y
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)
6y-(y+2分之y+2-y分之y)÷(y^3-4y-2y^2+8分之y) 怎么算
(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
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
解分式方程(y+3)/(y^2+y)-1/(1-y)=4/y要过程
4y(y-1)=3 3y^2+2√6y=-2
解3y+5/3y-6=1/2+5y-4/2y-4
(x+y)/2- x-y/2=6 3(x+y)=4(x-y)
x+y/3+x-y/2=6 4(x+y)-2(x-y)=40
{3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1
x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20
{(x+y)/2+(x-y)/3=6 4(x+y)-3(x-y)=-20
4(x+y)-3(x-y)=-20,2/x+y+3/x-y=6