2k^2-9k=-9

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Solution for 2k^2-9k=-9 equation:


Simplifying
2k2 + -9k = -9

Reorder the terms:
-9k + 2k2 = -9

Solving
-9k + 2k2 = -9

Solving for variable 'k'.

Reorder the terms:
9 + -9k + 2k2 = -9 + 9

Combine like terms: -9 + 9 = 0
9 + -9k + 2k2 = 0

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

Subproblem 1

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

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 = {1.5, 3}

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