x^2+kx-8=0

Simple and best practice solution for x^2+kx-8=0 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^2+kx-8=0 equation:


Simplifying
x2 + kx + -8 = 0

Reorder the terms:
-8 + kx + x2 = 0

Solving
-8 + kx + x2 = 0

Solving for variable 'k'.

Move all terms containing k to the left, all other terms to the right.

Add '8' to each side of the equation.
-8 + kx + 8 + x2 = 0 + 8

Reorder the terms:
-8 + 8 + kx + x2 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + kx + x2 = 0 + 8
kx + x2 = 0 + 8

Combine like terms: 0 + 8 = 8
kx + x2 = 8

Add '-1x2' to each side of the equation.
kx + x2 + -1x2 = 8 + -1x2

Combine like terms: x2 + -1x2 = 0
kx + 0 = 8 + -1x2
kx = 8 + -1x2

Divide each side by 'x'.
k = 8x-1 + -1x

Simplifying
k = 8x-1 + -1x

See similar equations:

| 4-6*2/2+2 | | 3p^2-18p=0 | | 7x-3=-5+6x(4x+3) | | 2x+2(.375)=3.00 | | 8x+3y=6.50 | | 2/4+1/3 | | =(x-4+i)(x-4-i) | | x+4-6+15x-3x=19x-8+20-7 | | 2x*5=9x-(5/4) | | 12.21-4.3a=24.25 | | =[x-(4-i)][x-(4+i)][x-(4-3i)][x-(4+3i)] | | 3(7r-7)=-6r+6r | | 2x+65=75 | | 3(7r-7)=-6r-6 | | 14k-10=12k | | C(q)=3q^2+20q+10 | | 4y+2x=48 | | 2(x+6)=3(x+5) | | 7q+4q=88 | | 230-7x=38x+20 | | x^2-0.5x-3=0 | | -6-21=r | | 13-(-9x)+4x-(-10)= | | 16+3x=45 | | 24+24=46+6 | | -37-5x=2x+15 | | 24+24=46+2 | | 2x+3(1.5)=2772 | | 5(y-1)=6(y-5) | | 1/3x-6=4+2x | | 9+8x=93 | | 4=7v-8/8+v-6/4 |

Equations solver categories