9k=k^2+18

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Solution for 9k=k^2+18 equation:


Simplifying
9k = k2 + 18

Reorder the terms:
9k = 18 + k2

Solving
9k = 18 + k2

Solving for variable 'k'.

Reorder the terms:
-18 + 9k + -1k2 = 18 + k2 + -18 + -1k2

Reorder the terms:
-18 + 9k + -1k2 = 18 + -18 + k2 + -1k2

Combine like terms: 18 + -18 = 0
-18 + 9k + -1k2 = 0 + k2 + -1k2
-18 + 9k + -1k2 = k2 + -1k2

Combine like terms: k2 + -1k2 = 0
-18 + 9k + -1k2 = 0

Factor a trinomial.
(-6 + k)(3 + -1k) = 0

Subproblem 1

Set the factor '(-6 + k)' equal to zero and attempt to solve: Simplifying -6 + k = 0 Solving -6 + k = 0 Move all terms containing k to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + k = 0 + 6 Combine like terms: -6 + 6 = 0 0 + k = 0 + 6 k = 0 + 6 Combine like terms: 0 + 6 = 6 k = 6 Simplifying k = 6

Subproblem 2

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

Solution

k = {6, 3}

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