x+8/4=20/x

Simple and best practice solution for x+8/4=20/x 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 x+8/4=20/x equation: 


D( x )

x = 0

x = 0

x = 0

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

x+8/4 = 20/x // - 20/x

x-(20/x)+8/4 = 0

x-20*x^-1+8/4 = 0

1*x^1-20*x^-1+2*x^0 = 0

(1*x^2+2*x^1-20*x^0)/(x^1) = 0 // * x^2

x^1*(1*x^2+2*x^1-20*x^0) = 0

x^1

x^2+2*x-20 = 0

x^2+2*x-20 = 0

DELTA = 2^2-(-20*1*4)

DELTA = 84

DELTA > 0

x = (84^(1/2)-2)/(1*2) or x = (-84^(1/2)-2)/(1*2)

x = (2*21^(1/2)-2)/2 or x = (-2*21^(1/2)-2)/2

x in { (-2*21^(1/2)-2)/2, (2*21^(1/2)-2)/2} 

x in { (-2*21^(1/2)-2)/2, (2*21^(1/2)-2)/2 }

See similar equations:

| 8n+7=89 | | 20=-9.75x^2+26x | | y=2x^3+17x^2+41x+30 | | 3c+2=5c-6 | | 5(3x+4)=25 | | 7m+11=-24 | | 14x-7x=169-42x | | x=8y/4 | | 9+2p-3=8p+6-4p | | (n*9)-10=71 | | 4x-2y+3=0 | | 3y+5=2y+9 | | 6.2h+5-1.4h=4.6h+5 | | (2x-1)(3x-2)(4x-8)=0 | | 4(y-5)=2(5-y) | | 4(y-5)=(5-y) | | 4x+8/x^2+2x | | -4/w-4=-1/5w-20+1 | | (n+5)*4=56 | | 4b=4-b | | 9c+5=4c-11 | | n*3=51 | | (2x+35)/5=17 | | n+39=35 | | 2x/5=15 | | 2x+35/5=17 | | 6m-(-2mn+6n)=0 | | r-3s-3t-4r+10s+8t= | | 11-6x=2x+24 | | 6x-9=99-3x | | 18-2=8x | | 0.074/4 |

Equations solver categories