4r-4/r-2

Simple and best practice solution for 4r-4/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 4r-4/r-2 equation: 


D( r )

r = 0

r = 0

r = 0

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

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

4*r-4*r^-1-2 = 0

4*r^1-4*r^-1-2*r^0 = 0

(4*r^2-2*r^1-4*r^0)/(r^1) = 0 // * r^2

r^1*(4*r^2-2*r^1-4*r^0) = 0

r^1

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

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

DELTA = (-2)^2-(-4*4*4)

DELTA = 68

DELTA > 0

r = (68^(1/2)+2)/(2*4) or r = (2-68^(1/2))/(2*4)

r = (2*17^(1/2)+2)/8 or r = (2-2*17^(1/2))/8

r in { (2-2*17^(1/2))/8, (2*17^(1/2)+2)/8} 

r in { (2-2*17^(1/2))/8, (2*17^(1/2)+2)/8 }

See similar equations:

| 1/5(01 | | 0.4y=5y | | 4(w-7)-(-9w-1)=12w | | (3x+30)+x=90 | | f(x+6)=6x+-8 | | 7-8/6=7 | | -5(x+2)=5-(-1) | | 7e^2x=2 | | x+7x-30=0 | | 100(90+8)+2(90+8)= | | 15x-4=5x-54 | | 6x^2(8x+1)+8x+1= | | 0.62=log(x) | | 3(x+1)-4(x-2)= | | -3/13=9 | | f(x)=4(1.5) | | -7.2/0.6 | | -3/13=-0 | | 3/5:[4/5-3x(2-4/5)] | | 12+8=420 | | 7/15x-3/15=4 | | 10r+6=52 | | 3x+7+8x-6=4x+7x | | -30+30=-19p-11p | | x^2-3x+y^2-4y=0 | | x+10+9=0 | | x^3-3x+y^2-4y=0 | | x-2x-120=0 | | x+2x-48=0 | | -10x^2+15= | | -3•5/-9•2/7 | | -12=.2x-8x |

Equations solver categories