k^2-6k=-8

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Solution for k^2-6k=-8 equation:


Simplifying
k2 + -6k = -8

Reorder the terms:
-6k + k2 = -8

Solving
-6k + k2 = -8

Solving for variable 'k'.

Reorder the terms:
8 + -6k + k2 = -8 + 8

Combine like terms: -8 + 8 = 0
8 + -6k + k2 = 0

Factor a trinomial.
(2 + -1k)(4 + -1k) = 0

Subproblem 1

Set the factor '(2 + -1k)' equal to zero and attempt to solve: Simplifying 2 + -1k = 0 Solving 2 + -1k = 0 Move all terms containing k to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1k = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1k = 0 + -2 -1k = 0 + -2 Combine like terms: 0 + -2 = -2 -1k = -2 Divide each side by '-1'. k = 2 Simplifying k = 2

Subproblem 2

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

Solution

k = {2, 4}

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