k^2=11k-28

Simple and best practice solution for k^2=11k-28 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 k^2=11k-28 equation:


Simplifying
k2 = 11k + -28

Reorder the terms:
k2 = -28 + 11k

Solving
k2 = -28 + 11k

Solving for variable 'k'.

Reorder the terms:
28 + -11k + k2 = -28 + 11k + 28 + -11k

Reorder the terms:
28 + -11k + k2 = -28 + 28 + 11k + -11k

Combine like terms: -28 + 28 = 0
28 + -11k + k2 = 0 + 11k + -11k
28 + -11k + k2 = 11k + -11k

Combine like terms: 11k + -11k = 0
28 + -11k + k2 = 0

Factor a trinomial.
(4 + -1k)(7 + -1k) = 0

Subproblem 1

Set the factor '(4 + -1k)' equal to zero and attempt to solve: Simplifying 4 + -1k = 0 Solving 4 + -1k = 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 + -1k = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1k = 0 + -4 -1k = 0 + -4 Combine like terms: 0 + -4 = -4 -1k = -4 Divide each side by '-1'. k = 4 Simplifying k = 4

Subproblem 2

Set the factor '(7 + -1k)' equal to zero and attempt to solve: Simplifying 7 + -1k = 0 Solving 7 + -1k = 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 + -1k = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1k = 0 + -7 -1k = 0 + -7 Combine like terms: 0 + -7 = -7 -1k = -7 Divide each side by '-1'. k = 7 Simplifying k = 7

Solution

k = {4, 7}

See similar equations:

| 4w*(-5)=4*3(w+4) | | 5x+20+15=180 | | n^2+3=-4n | | 10-x=-20 | | -(5y+7)-(-4y+8)=-7 | | 6(x-8)-3x=5(x-4)-2 | | m^2=-3m+4 | | (z^4)+48=0 | | 4(p+6q-12)= | | 8x^2-160=8x | | y-11=20 | | 7(6+4x)=42 | | 0=3(x-4)-15 | | 3n+6=-102-9n | | -15=3n-4n^2-5 | | 2(3x-8)=-2(x-4) | | 62-2n=2n+10 | | 2m+56=-25 | | 4(7+6x)=-44 | | -40-3n=14-9n | | 5x^2-26x+20=-5x+2 | | 68-2n=8n+18 | | 3x-18=-2x+7 | | 0=4(x+8)-64 | | 5x^2+4x-28=0 | | 2x+4y=138 | | 2n+9=41-2n | | x^2+3x=363 | | 8x+8=8(x-9) | | 12m=6(m+-8) | | 10n+17=77 | | 5d=-30 |

Equations solver categories