8k^2+39k+28=0

Simple and best practice solution for 8k^2+39k+28=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+39k+28=0 equation:


Simplifying
8k2 + 39k + 28 = 0

Reorder the terms:
28 + 39k + 8k2 = 0

Solving
28 + 39k + 8k2 = 0

Solving for variable 'k'.

Factor a trinomial.
(4 + k)(7 + 8k) = 0

Subproblem 1

Set the factor '(4 + k)' equal to zero and attempt to solve: Simplifying 4 + k = 0 Solving 4 + k = 0 Move all terms containing k to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + k = 0 + -4 Combine like terms: 4 + -4 = 0 0 + k = 0 + -4 k = 0 + -4 Combine like terms: 0 + -4 = -4 k = -4 Simplifying k = -4

Subproblem 2

Set the factor '(7 + 8k)' equal to zero and attempt to solve: Simplifying 7 + 8k = 0 Solving 7 + 8k = 0 Move all terms containing k to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 8k = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 8k = 0 + -7 8k = 0 + -7 Combine like terms: 0 + -7 = -7 8k = -7 Divide each side by '8'. k = -0.875 Simplifying k = -0.875

Solution

k = {-4, -0.875}

See similar equations:

| 3/5x+5/4=-1/4 | | 3/4x=-10 | | -2x-2(-7x-14)=124 | | 25-9=x/3 | | 10w-14=9w+17 | | 4/5n-8=4 | | -14r-2(-7-11r)= | | 19=-9+(6y+12) | | 50a-1=60a-101 | | 7x-2(25-x)= | | 10n+25=65 | | 0.29(x+50)+0.31(x+75)=-37.25 | | 33=4x+13 | | 9x+18-8x=-7-10 | | 11+x/2=17 | | 3x+40=4x+0 | | 19=-9(6y+12) | | 13-(21+12x)= | | 13=4x+13 | | 27+5*6= | | -7+21=m-6 | | 56t=64(t-1/4) | | 25=(-30)(0.1)+v | | 28+24MF=35+7MF-17mf | | (F/4)+20.5=12.9 | | 5(x+3)-2=2x+2 | | -12+24d=-18+18d | | 9-(m-3)+4m-9=m+3 | | 12-7(p-4)= | | v+16=9 | | 6-7x=-22 | | n+n+1+n+2+n+3=-66 |

Equations solver categories