(k-5)(3k-8)=

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Solution for (k-5)(3k-8)= equation:


Simplifying
(k + -5)(3k + -8) = 0

Reorder the terms:
(-5 + k)(3k + -8) = 0

Reorder the terms:
(-5 + k)(-8 + 3k) = 0

Multiply (-5 + k) * (-8 + 3k)
(-5(-8 + 3k) + k(-8 + 3k)) = 0
((-8 * -5 + 3k * -5) + k(-8 + 3k)) = 0
((40 + -15k) + k(-8 + 3k)) = 0
(40 + -15k + (-8 * k + 3k * k)) = 0
(40 + -15k + (-8k + 3k2)) = 0

Combine like terms: -15k + -8k = -23k
(40 + -23k + 3k2) = 0

Solving
40 + -23k + 3k2 = 0

Solving for variable 'k'.

Factor a trinomial.
(8 + -3k)(5 + -1k) = 0

Subproblem 1

Set the factor '(8 + -3k)' equal to zero and attempt to solve: Simplifying 8 + -3k = 0 Solving 8 + -3k = 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 + -3k = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -3k = 0 + -8 -3k = 0 + -8 Combine like terms: 0 + -8 = -8 -3k = -8 Divide each side by '-3'. k = 2.666666667 Simplifying k = 2.666666667

Subproblem 2

Set the factor '(5 + -1k)' equal to zero and attempt to solve: Simplifying 5 + -1k = 0 Solving 5 + -1k = 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 + -1k = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1k = 0 + -5 -1k = 0 + -5 Combine like terms: 0 + -5 = -5 -1k = -5 Divide each side by '-1'. k = 5 Simplifying k = 5

Solution

k = {2.666666667, 5}

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