-42n^2-45n-12=

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Solution for -42n^2-45n-12= equation:


Simplifying
-42n2 + -45n + -12 = 0

Reorder the terms:
-12 + -45n + -42n2 = 0

Solving
-12 + -45n + -42n2 = 0

Solving for variable 'n'.

Factor out the Greatest Common Factor (GCF), '-3'.
-3(4 + 15n + 14n2) = 0

Factor a trinomial.
-3((4 + 7n)(1 + 2n)) = 0

Ignore the factor -3.

Subproblem 1

Set the factor '(4 + 7n)' equal to zero and attempt to solve: Simplifying 4 + 7n = 0 Solving 4 + 7n = 0 Move all terms containing n to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + 7n = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 7n = 0 + -4 7n = 0 + -4 Combine like terms: 0 + -4 = -4 7n = -4 Divide each side by '7'. n = -0.5714285714 Simplifying n = -0.5714285714

Subproblem 2

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

Solution

n = {-0.5714285714, -0.5}

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