2k^2-40=-11k

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Solution for 2k^2-40=-11k equation:


Simplifying
2k2 + -40 = -11k

Reorder the terms:
-40 + 2k2 = -11k

Solving
-40 + 2k2 = -11k

Solving for variable 'k'.

Reorder the terms:
-40 + 11k + 2k2 = -11k + 11k

Combine like terms: -11k + 11k = 0
-40 + 11k + 2k2 = 0

Factor a trinomial.
(-8 + -1k)(5 + -2k) = 0

Subproblem 1

Set the factor '(-8 + -1k)' equal to zero and attempt to solve: Simplifying -8 + -1k = 0 Solving -8 + -1k = 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 + -1k = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -1k = 0 + 8 -1k = 0 + 8 Combine like terms: 0 + 8 = 8 -1k = 8 Divide each side by '-1'. k = -8 Simplifying k = -8

Subproblem 2

Set the factor '(5 + -2k)' equal to zero and attempt to solve: Simplifying 5 + -2k = 0 Solving 5 + -2k = 0 Move all terms containing k to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -2k = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2k = 0 + -5 -2k = 0 + -5 Combine like terms: 0 + -5 = -5 -2k = -5 Divide each side by '-2'. k = 2.5 Simplifying k = 2.5

Solution

k = {-8, 2.5}

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