x^2-kx-2=0

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


Simplifying
x2 + -1kx + -2 = 0

Reorder the terms:
-2 + -1kx + x2 = 0

Solving
-2 + -1kx + x2 = 0

Solving for variable 'k'.

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

Add '2' to each side of the equation.
-2 + -1kx + 2 + x2 = 0 + 2

Reorder the terms:
-2 + 2 + -1kx + x2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -1kx + x2 = 0 + 2
-1kx + x2 = 0 + 2

Combine like terms: 0 + 2 = 2
-1kx + x2 = 2

Add '-1x2' to each side of the equation.
-1kx + x2 + -1x2 = 2 + -1x2

Combine like terms: x2 + -1x2 = 0
-1kx + 0 = 2 + -1x2
-1kx = 2 + -1x2

Divide each side by '-1x'.
k = -2x-1 + x

Simplifying
k = -2x-1 + x

See similar equations:

| a^3+5a^2+4a=0 | | Y+3=y-3 | | a=0.75+0.75b | | 3(4+3x)+2(2x-7)=180 | | -4-2(6-a)=0 | | x+10+2x+5=180 | | (2x-5)+(5x-10)=90 | | 4x^2-23x+44=2x+8 | | 7(7y+2)-8=-2 | | 4x^2-27x+36=-6x+9 | | 7=8m-9m | | log(4-10)(36)=x | | log(4+2)(36)=x | | 23/4/17/4 | | log(4+4)(36)=x | | 3x-31x=6 | | log(4-4)(36)=x | | (3X)+3=30 | | log(4-4)(36)= | | (f+g)(3)= | | (405x^2+12500-3900x)= | | (-37)-(-60)= | | 2.3x-5=1.5x-3 | | x^2+13x+3=8x-1 | | -2(3X-9)=0 | | 2.6k=4k-(3.5) | | -2(2y-6)=-4 | | x^2+10x+9=4x+1 | | 10a-3=27 | | 2(2x-2)=-x+14 | | 5/(3x+6)=2/(9x) | | .3(3w+45)=0.9w+13.5 |

Equations solver categories