12n^2-11n=15

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Solution for 12n^2-11n=15 equation:


Simplifying
12n2 + -11n = 15

Reorder the terms:
-11n + 12n2 = 15

Solving
-11n + 12n2 = 15

Solving for variable 'n'.

Reorder the terms:
-15 + -11n + 12n2 = 15 + -15

Combine like terms: 15 + -15 = 0
-15 + -11n + 12n2 = 0

Factor a trinomial.
(-3 + -4n)(5 + -3n) = 0

Subproblem 1

Set the factor '(-3 + -4n)' equal to zero and attempt to solve: Simplifying -3 + -4n = 0 Solving -3 + -4n = 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 + -4n = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -4n = 0 + 3 -4n = 0 + 3 Combine like terms: 0 + 3 = 3 -4n = 3 Divide each side by '-4'. n = -0.75 Simplifying n = -0.75

Subproblem 2

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

Solution

n = {-0.75, 1.666666667}

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