(2k-5)(3k+8)=0

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Solution for (2k-5)(3k+8)=0 equation:


Simplifying
(2k + -5)(3k + 8) = 0

Reorder the terms:
(-5 + 2k)(3k + 8) = 0

Reorder the terms:
(-5 + 2k)(8 + 3k) = 0

Multiply (-5 + 2k) * (8 + 3k)
(-5(8 + 3k) + 2k * (8 + 3k)) = 0
((8 * -5 + 3k * -5) + 2k * (8 + 3k)) = 0
((-40 + -15k) + 2k * (8 + 3k)) = 0
(-40 + -15k + (8 * 2k + 3k * 2k)) = 0
(-40 + -15k + (16k + 6k2)) = 0

Combine like terms: -15k + 16k = 1k
(-40 + 1k + 6k2) = 0

Solving
-40 + 1k + 6k2 = 0

Solving for variable 'k'.

Factor a trinomial.
(-8 + -3k)(5 + -2k) = 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 + -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 = {-2.666666667, 2.5}

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