3n^2+12=13n

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Solution for 3n^2+12=13n equation:


Simplifying
3n2 + 12 = 13n

Reorder the terms:
12 + 3n2 = 13n

Solving
12 + 3n2 = 13n

Solving for variable 'n'.

Reorder the terms:
12 + -13n + 3n2 = 13n + -13n

Combine like terms: 13n + -13n = 0
12 + -13n + 3n2 = 0

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

Subproblem 1

Set the factor '(4 + -3n)' equal to zero and attempt to solve: Simplifying 4 + -3n = 0 Solving 4 + -3n = 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 + -3n = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -3n = 0 + -4 -3n = 0 + -4 Combine like terms: 0 + -4 = -4 -3n = -4 Divide each side by '-3'. n = 1.333333333 Simplifying n = 1.333333333

Subproblem 2

Set the factor '(3 + -1n)' equal to zero and attempt to solve: Simplifying 3 + -1n = 0 Solving 3 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1n = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1n = 0 + -3 -1n = 0 + -3 Combine like terms: 0 + -3 = -3 -1n = -3 Divide each side by '-1'. n = 3 Simplifying n = 3

Solution

n = {1.333333333, 3}

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