21k^2-35k-8=-8

Simple and best practice solution for 21k^2-35k-8=-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 21k^2-35k-8=-8 equation:


Simplifying
21k2 + -35k + -8 = -8

Reorder the terms:
-8 + -35k + 21k2 = -8

Add '8' to each side of the equation.
-8 + -35k + 8 + 21k2 = -8 + 8

Reorder the terms:
-8 + 8 + -35k + 21k2 = -8 + 8

Combine like terms: -8 + 8 = 0
0 + -35k + 21k2 = -8 + 8
-35k + 21k2 = -8 + 8

Combine like terms: -8 + 8 = 0
-35k + 21k2 = 0

Solving
-35k + 21k2 = 0

Solving for variable 'k'.

Factor out the Greatest Common Factor (GCF), '7k'.
7k(-5 + 3k) = 0

Ignore the factor 7.

Subproblem 1

Set the factor 'k' equal to zero and attempt to solve: Simplifying k = 0 Solving k = 0 Move all terms containing k to the left, all other terms to the right. Simplifying k = 0

Subproblem 2

Set the factor '(-5 + 3k)' equal to zero and attempt to solve: Simplifying -5 + 3k = 0 Solving -5 + 3k = 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 + 3k = 0 + 5 Combine like terms: -5 + 5 = 0 0 + 3k = 0 + 5 3k = 0 + 5 Combine like terms: 0 + 5 = 5 3k = 5 Divide each side by '3'. k = 1.666666667 Simplifying k = 1.666666667

Solution

k = {0, 1.666666667}

See similar equations:

| 7t-10=-16+8t | | ln(5x-2)-ln(3x-2)=ln(15x-6)-ln(5x+2) | | x+5x+6=29 | | 3(3S+1)=111 | | 8y+x=20 | | 3n^2-39n=-120 | | 3w-w=16 | | f(x)=-16x^2+96x+12 | | -5(x-6)=85 | | 4+10=22 | | r^2+7r+5=-7 | | 3(S+1)=36 | | 0=2x^2-32 | | -9w+8w+2=-3 | | 26m=650 | | 6(v-5)(5v+8)=0 | | 4(2L+1)=111 | | -11-n=-11 | | 3x+(x+38)=90 | | 14=5+h | | U-1=-4 | | -46=p-19 | | 8a-4-3a=12 | | 13-4x=-x-31 | | (x+54)+2x=90 | | 8x-4=-1 | | (x+54)+2x=180 | | 6(3x+5)=100 | | 6x+7c=37cforx | | 12x^2+105x+147=35 | | .2t+1.8=1.2 | | -.2t+1.8=1.2 |

Equations solver categories