(5/4r)-(2/r^2)

Simple and best practice solution for (5/4r)-(2/r^2) 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 (5/4r)-(2/r^2) equation: 


D( r )

r^2 = 0

r^2 = 0

r^2 = 0

1*r^2 = 0 // : 1

r^2 = 0

r = 0

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

(5/4)*r-(2/(r^2)) = 0

(5/4)*r-2*r^-2 = 0

5/4*r-2*r^-2 = 0

r*(5/4-2*r^-3) = 0

-2*r^-3 = -5/4 // : -2

r^-3 = 5/8

-3 < 0

1/(r^3) = 5/8 // * r^3

1 = 5/8*r^3 // : 5/8

8/5 = r^3

r^3 = 8/5 // ^ 1/3

r = (8/5)^(1/3)

r = 0

r = 0

r in { 0} 

r = (8/5)^(1/3)

See similar equations:

| x^2-6-30=0 | | 2x-1*x-3=624 | | 3x(4+1)=15 | | (6z^3)/(7z^4r^6) | | 5(2a+5)=35 | | (-25i)^(1/2) | | 13-9n=2n-10 | | 5x+2y=2400 | | (5x-1)(4x+3)=0 | | -2+3+6x=11+12x-3 | | 16x+16=72 | | 4(x+4)=-3(x+2) | | 32x^4-8x^3+50x-1250=0 | | -4y^3+20y^2+4y-20=2000 | | ln(x)+ln(x+6)=ln(55) | | X^2+480=0 | | 2x-8=30x | | 3x-9=1x-5 | | y=4x(11-2x) | | 4y-6=6a | | 7z+3=6 | | 8x-5+170=8x+65 | | 10b^3+25b^2=0 | | 37y-3=y-6 | | -16t^2+250t=900 | | v=45 | | 64m/4 | | 2x-10=-27 | | u=2(9n+33)+5(n+1) | | 7tanx=32 | | (2xy/5y^3)(15y/4x) | | X^2=6-4x |

Equations solver categories