42k^2+36k-96=0

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Solution for 42k^2+36k-96=0 equation:


Simplifying
42k2 + 36k + -96 = 0

Reorder the terms:
-96 + 36k + 42k2 = 0

Solving
-96 + 36k + 42k2 = 0

Solving for variable 'k'.

Factor out the Greatest Common Factor (GCF), '6'.
6(-16 + 6k + 7k2) = 0

Factor a trinomial.
6((-2 + -1k)(8 + -7k)) = 0

Ignore the factor 6.

Subproblem 1

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

Subproblem 2

Set the factor '(8 + -7k)' equal to zero and attempt to solve: Simplifying 8 + -7k = 0 Solving 8 + -7k = 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 + -7k = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -7k = 0 + -8 -7k = 0 + -8 Combine like terms: 0 + -8 = -8 -7k = -8 Divide each side by '-7'. k = 1.142857143 Simplifying k = 1.142857143

Solution

k = {-2, 1.142857143}

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