15n^2+61n+56=0

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Solution for 15n^2+61n+56=0 equation:


Simplifying
15n2 + 61n + 56 = 0

Reorder the terms:
56 + 61n + 15n2 = 0

Solving
56 + 61n + 15n2 = 0

Solving for variable 'n'.

Factor a trinomial.
(8 + 3n)(7 + 5n) = 0

Subproblem 1

Set the factor '(8 + 3n)' equal to zero and attempt to solve: Simplifying 8 + 3n = 0 Solving 8 + 3n = 0 Move all terms containing n to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + 3n = 0 + -8 Combine like terms: 8 + -8 = 0 0 + 3n = 0 + -8 3n = 0 + -8 Combine like terms: 0 + -8 = -8 3n = -8 Divide each side by '3'. n = -2.666666667 Simplifying n = -2.666666667

Subproblem 2

Set the factor '(7 + 5n)' equal to zero and attempt to solve: Simplifying 7 + 5n = 0 Solving 7 + 5n = 0 Move all terms containing n to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 5n = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 5n = 0 + -7 5n = 0 + -7 Combine like terms: 0 + -7 = -7 5n = -7 Divide each side by '5'. n = -1.4 Simplifying n = -1.4

Solution

n = {-2.666666667, -1.4}

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