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

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Solution for (3k-5)(k+8)=0 equation:


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

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

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

Multiply (-5 + 3k) * (8 + k)
(-5(8 + k) + 3k * (8 + k)) = 0
((8 * -5 + k * -5) + 3k * (8 + k)) = 0
((-40 + -5k) + 3k * (8 + k)) = 0
(-40 + -5k + (8 * 3k + k * 3k)) = 0
(-40 + -5k + (24k + 3k2)) = 0

Combine like terms: -5k + 24k = 19k
(-40 + 19k + 3k2) = 0

Solving
-40 + 19k + 3k2 = 0

Solving for variable 'k'.

Factor a trinomial.
(-8 + -1k)(5 + -3k) = 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 + -3k)' equal to zero and attempt to solve: Simplifying 5 + -3k = 0 Solving 5 + -3k = 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 + -3k = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3k = 0 + -5 -3k = 0 + -5 Combine like terms: 0 + -5 = -5 -3k = -5 Divide each side by '-3'. k = 1.666666667 Simplifying k = 1.666666667

Solution

k = {-8, 1.666666667}

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