3n^2=30+13n

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Solution for 3n^2=30+13n equation:


Simplifying
3n2 = 30 + 13n

Solving
3n2 = 30 + 13n

Solving for variable 'n'.

Reorder the terms:
-30 + -13n + 3n2 = 30 + 13n + -30 + -13n

Reorder the terms:
-30 + -13n + 3n2 = 30 + -30 + 13n + -13n

Combine like terms: 30 + -30 = 0
-30 + -13n + 3n2 = 0 + 13n + -13n
-30 + -13n + 3n2 = 13n + -13n

Combine like terms: 13n + -13n = 0
-30 + -13n + 3n2 = 0

Factor a trinomial.
(-5 + -3n)(6 + -1n) = 0

Subproblem 1

Set the factor '(-5 + -3n)' equal to zero and attempt to solve: Simplifying -5 + -3n = 0 Solving -5 + -3n = 0 Move all terms containing n to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -3n = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -3n = 0 + 5 -3n = 0 + 5 Combine like terms: 0 + 5 = 5 -3n = 5 Divide each side by '-3'. n = -1.666666667 Simplifying n = -1.666666667

Subproblem 2

Set the factor '(6 + -1n)' equal to zero and attempt to solve: Simplifying 6 + -1n = 0 Solving 6 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1n = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1n = 0 + -6 -1n = 0 + -6 Combine like terms: 0 + -6 = -6 -1n = -6 Divide each side by '-1'. n = 6 Simplifying n = 6

Solution

n = {-1.666666667, 6}

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