4k^2+6k=18

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Solution for 4k^2+6k=18 equation:


Simplifying
4k2 + 6k = 18

Reorder the terms:
6k + 4k2 = 18

Solving
6k + 4k2 = 18

Solving for variable 'k'.

Reorder the terms:
-18 + 6k + 4k2 = 18 + -18

Combine like terms: 18 + -18 = 0
-18 + 6k + 4k2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-9 + 3k + 2k2) = 0

Factor a trinomial.
2((-3 + -1k)(3 + -2k)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-3 + -1k)' equal to zero and attempt to solve: Simplifying -3 + -1k = 0 Solving -3 + -1k = 0 Move all terms containing k to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1k = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1k = 0 + 3 -1k = 0 + 3 Combine like terms: 0 + 3 = 3 -1k = 3 Divide each side by '-1'. k = -3 Simplifying k = -3

Subproblem 2

Set the factor '(3 + -2k)' equal to zero and attempt to solve: Simplifying 3 + -2k = 0 Solving 3 + -2k = 0 Move all terms containing k to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -2k = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -2k = 0 + -3 -2k = 0 + -3 Combine like terms: 0 + -3 = -3 -2k = -3 Divide each side by '-2'. k = 1.5 Simplifying k = 1.5

Solution

k = {-3, 1.5}

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