8k^3=2k^2+3k

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Solution for 8k^3=2k^2+3k equation:


Simplifying
8k3 = 2k2 + 3k

Reorder the terms:
8k3 = 3k + 2k2

Solving
8k3 = 3k + 2k2

Solving for variable 'k'.

Reorder the terms:
-3k + -2k2 + 8k3 = 3k + 2k2 + -3k + -2k2

Reorder the terms:
-3k + -2k2 + 8k3 = 3k + -3k + 2k2 + -2k2

Combine like terms: 3k + -3k = 0
-3k + -2k2 + 8k3 = 0 + 2k2 + -2k2
-3k + -2k2 + 8k3 = 2k2 + -2k2

Combine like terms: 2k2 + -2k2 = 0
-3k + -2k2 + 8k3 = 0

Factor out the Greatest Common Factor (GCF), 'k'.
k(-3 + -2k + 8k2) = 0

Factor a trinomial.
k((-1 + -2k)(3 + -4k)) = 0

Subproblem 1

Set the factor 'k' equal to zero and attempt to solve: Simplifying k = 0 Solving k = 0 Move all terms containing k to the left, all other terms to the right. Simplifying k = 0

Subproblem 2

Set the factor '(-1 + -2k)' equal to zero and attempt to solve: Simplifying -1 + -2k = 0 Solving -1 + -2k = 0 Move all terms containing k to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -2k = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -2k = 0 + 1 -2k = 0 + 1 Combine like terms: 0 + 1 = 1 -2k = 1 Divide each side by '-2'. k = -0.5 Simplifying k = -0.5

Subproblem 3

Set the factor '(3 + -4k)' equal to zero and attempt to solve: Simplifying 3 + -4k = 0 Solving 3 + -4k = 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 + -4k = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -4k = 0 + -3 -4k = 0 + -3 Combine like terms: 0 + -3 = -3 -4k = -3 Divide each side by '-4'. k = 0.75 Simplifying k = 0.75

Solution

k = {0, -0.5, 0.75}

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