9n^2+42n+55=6

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Solution for 9n^2+42n+55=6 equation:


Simplifying
9n2 + 42n + 55 = 6

Reorder the terms:
55 + 42n + 9n2 = 6

Solving
55 + 42n + 9n2 = 6

Solving for variable 'n'.

Reorder the terms:
55 + -6 + 42n + 9n2 = 6 + -6

Combine like terms: 55 + -6 = 49
49 + 42n + 9n2 = 6 + -6

Combine like terms: 6 + -6 = 0
49 + 42n + 9n2 = 0

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

Subproblem 1

Set the factor '(7 + 3n)' equal to zero and attempt to solve: Simplifying 7 + 3n = 0 Solving 7 + 3n = 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 + 3n = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 3n = 0 + -7 3n = 0 + -7 Combine like terms: 0 + -7 = -7 3n = -7 Divide each side by '3'. n = -2.333333333 Simplifying n = -2.333333333

Subproblem 2

Set the factor '(7 + 3n)' equal to zero and attempt to solve: Simplifying 7 + 3n = 0 Solving 7 + 3n = 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 + 3n = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 3n = 0 + -7 3n = 0 + -7 Combine like terms: 0 + -7 = -7 3n = -7 Divide each side by '3'. n = -2.333333333 Simplifying n = -2.333333333

Solution

n = {-2.333333333, -2.333333333}

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