2k^2+16k=18

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Solution for 2k^2+16k=18 equation:


Simplifying
2k2 + 16k = 18

Reorder the terms:
16k + 2k2 = 18

Solving
16k + 2k2 = 18

Solving for variable 'k'.

Reorder the terms:
-18 + 16k + 2k2 = 18 + -18

Combine like terms: 18 + -18 = 0
-18 + 16k + 2k2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-9 + 8k + k2) = 0

Factor a trinomial.
2((-9 + -1k)(1 + -1k)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-9 + -1k)' equal to zero and attempt to solve: Simplifying -9 + -1k = 0 Solving -9 + -1k = 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 + -1k = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1k = 0 + 9 -1k = 0 + 9 Combine like terms: 0 + 9 = 9 -1k = 9 Divide each side by '-1'. k = -9 Simplifying k = -9

Subproblem 2

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

Solution

k = {-9, 1}

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