8k^2+32k-40=0

Simple and best practice solution for 8k^2+32k-40=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 8k^2+32k-40=0 equation:


Simplifying
8k2 + 32k + -40 = 0

Reorder the terms:
-40 + 32k + 8k2 = 0

Solving
-40 + 32k + 8k2 = 0

Solving for variable 'k'.

Factor out the Greatest Common Factor (GCF), '8'.
8(-5 + 4k + k2) = 0

Factor a trinomial.
8((-5 + -1k)(1 + -1k)) = 0

Ignore the factor 8.

Subproblem 1

Set the factor '(-5 + -1k)' equal to zero and attempt to solve: Simplifying -5 + -1k = 0 Solving -5 + -1k = 0 Move all terms containing k to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -1k = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1k = 0 + 5 -1k = 0 + 5 Combine like terms: 0 + 5 = 5 -1k = 5 Divide each side by '-1'. k = -5 Simplifying k = -5

Subproblem 2

Set the factor '(1 + -1k)' equal to zero and attempt to solve: Simplifying 1 + -1k = 0 Solving 1 + -1k = 0 Move all terms containing k to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1k = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1k = 0 + -1 -1k = 0 + -1 Combine like terms: 0 + -1 = -1 -1k = -1 Divide each side by '-1'. k = 1 Simplifying k = 1

Solution

k = {-5, 1}

See similar equations:

| 2x^2+6x-194= | | 2p-4p=16 | | 9(x)+3(y)=1050 | | 2457c-15151=5662 | | 7.8x-3.2(3.1x-2.4)= | | -7(3n-3)-5=-7n+21 | | -8(m+3)=32 | | 8d-5d-16d=18 | | 3p+28=4p+27 | | -(x-8)+4x=2(x-8)+x | | 7x^2-4y^2=18 | | F-819/-20=-9 | | 45x=4 | | 21+28h=-2 | | 10x=4(x-62) | | 3u-3u+u=12 | | 9+3.5d=11-0.5d | | 9-30x-y-15=0 | | w+5.3=-10 | | 10g+13g+-12g-4g+-17g=4 | | 8x+25=3x | | (X+15)+71=180 | | 2y^2=128squared | | 10g+13g+-12g-4g+-17g=7 | | 5/6x-1/3=4/7x-5/42 | | 2(x-1)+6x=4(3-1)+2 | | 8k^2+32-40=0 | | 4y-y=2 | | .6=4/x | | 988=19(k-936) | | 576/x=x | | 40-7x=-8(x-5)-7 |

Equations solver categories