15k^2+159k+216=0

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Solution for 15k^2+159k+216=0 equation:


Simplifying
15k2 + 159k + 216 = 0

Reorder the terms:
216 + 159k + 15k2 = 0

Solving
216 + 159k + 15k2 = 0

Solving for variable 'k'.

Factor out the Greatest Common Factor (GCF), '3'.
3(72 + 53k + 5k2) = 0

Factor a trinomial.
3((9 + k)(8 + 5k)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(9 + k)' equal to zero and attempt to solve: Simplifying 9 + k = 0 Solving 9 + k = 0 Move all terms containing k to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + k = 0 + -9 Combine like terms: 9 + -9 = 0 0 + k = 0 + -9 k = 0 + -9 Combine like terms: 0 + -9 = -9 k = -9 Simplifying k = -9

Subproblem 2

Set the factor '(8 + 5k)' equal to zero and attempt to solve: Simplifying 8 + 5k = 0 Solving 8 + 5k = 0 Move all terms containing k to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + 5k = 0 + -8 Combine like terms: 8 + -8 = 0 0 + 5k = 0 + -8 5k = 0 + -8 Combine like terms: 0 + -8 = -8 5k = -8 Divide each side by '5'. k = -1.6 Simplifying k = -1.6

Solution

k = {-9, -1.6}

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