u-8/u

Simple and best practice solution for u-8/u equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for u-8/u equation: 


D( u )

u = 0

u = 0

u = 0

u in (-oo:0) U (0:+oo)

u-(8/u) = 0

u-8*u^-1 = 0

1*u^1-8*u^-1 = 0

(1*u^2-8*u^0)/(u^1) = 0 // * u^2

u^1*(1*u^2-8*u^0) = 0

u^1

u^2-8 = 0

u^2-8 = 0

DELTA = 0^2-(-8*1*4)

DELTA = 32

DELTA > 0

u = (32^(1/2)+0)/(1*2) or u = (0-32^(1/2))/(1*2)

u = 2*2^(1/2) or u = -2*2^(1/2)

u in { -2*2^(1/2), 2*2^(1/2)} 

u in { -2*2^(1/2), 2*2^(1/2) }

See similar equations:

| 5(-7x^3)= | | x-9y=-93 | | 5y-3x=59 | | In(x-3)=In(5x)+In(2) | | 3x(3+2)x[10-32]= | | 1.4x^2-2x-10=0 | | 9m=16m | | cot(3x)=tan2*3,14/5 | | 600+10=15x+800 | | 142=1/3(3.14)r^2*8.5 | | 6x^2+36x=48 | | (x^2-5)(3-x^4)(100x^2-10)=0 | | 3/4-m/3 | | M/4-2 | | 3x-2y=58 | | 20x^3/5x^2= | | 7x^2+3y^2-24y=139 | | x^2-32x=-28 | | x-(x*0.01)-(x*0.01*0.1)=1 | | 18u^9v^9+24u^3v^2w^6= | | 5x+16=2x+3y | | -2/3x-7 | | 15x1/3= | | 2*3.33333333333+10= | | x=11+-3y | | 2x^2-7x+55=x^2-14x+49 | | 23y+6= | | x-(x*0.01)-(x*0.01*0.1)=0 | | 2x^2-7x+55=x-7*x-7 | | 25x^2-30x+11=0 | | 15n+19= | | 3m^2-5m=12 |

Equations solver categories