63k^2+87k=30

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Solution for 63k^2+87k=30 equation:


Simplifying
63k2 + 87k = 30

Reorder the terms:
87k + 63k2 = 30

Solving
87k + 63k2 = 30

Solving for variable 'k'.

Reorder the terms:
-30 + 87k + 63k2 = 30 + -30

Combine like terms: 30 + -30 = 0
-30 + 87k + 63k2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-10 + 29k + 21k2) = 0

Factor a trinomial.
3((-5 + -3k)(2 + -7k)) = 0

Ignore the factor 3.

Subproblem 1

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

Subproblem 2

Set the factor '(2 + -7k)' equal to zero and attempt to solve: Simplifying 2 + -7k = 0 Solving 2 + -7k = 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 + -7k = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -7k = 0 + -2 -7k = 0 + -2 Combine like terms: 0 + -2 = -2 -7k = -2 Divide each side by '-7'. k = 0.2857142857 Simplifying k = 0.2857142857

Solution

k = {-1.666666667, 0.2857142857}

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