1/2x^2-x=8

Simple and best practice solution for 1/2x^2-x=8 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 1/2x^2-x=8 equation: 


x in (-oo:+oo)

(1/2)*x^2-x = 8 // - 8

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

1/2*x^2-x-8 = 0

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

DELTA = 17

DELTA > 0

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

x = 17^(1/2)+1 or x = 1-17^(1/2)

x in { 1-17^(1/2), 17^(1/2)+1 }

See similar equations:

| 3/5=t/7 | | x/3+7=-3 | | 12y-9=17y+21 | | -10/2 | | -8n=4(3n+5) | | 5z+6z=77 | | 3(10x)=6 | | 2x^2-6=92 | | 113x=339 | | 2x^2+11x+12=o | | 14x+10=-14 | | 6x+27=99 | | 3x+4000= | | 1/5(4X+2)=2 | | 1/4X-6=12 | | 4/6=x/12 | | 5(2x-4x)=10 | | 16x-6=32x+6 | | 1/2X+9=15 | | b^2-4b-4=-4 | | rs+t=u | | 3(x+1)+4(x-3)=12 | | 7y+3x=4xy | | n^2+4n-37=-5 | | 25k^2=1 | | v^2+8v-5=-5 | | 20x-5=35x+1 | | ln(4)+5ln(1/2)+ln(z) | | ln(28)-ln(7)= | | 9+6-8=0 | | -3m+4=1 | | -4.7=3x+1.3 |

Equations solver categories