(n+4)(5n-6)=0

Solution for (n+4)(5n-6)=0 equation:

Simplifying
(n + 4)(5n + -6) = 0

Reorder the terms:
(4 + n)(5n + -6) = 0

Reorder the terms:
(4 + n)(-6 + 5n) = 0

Multiply (4 + n) * (-6 + 5n)
(4(-6 + 5n) + n(-6 + 5n)) = 0
((-6 * 4 + 5n * 4) + n(-6 + 5n)) = 0
((-24 + 20n) + n(-6 + 5n)) = 0
(-24 + 20n + (-6 * n + 5n * n)) = 0
(-24 + 20n + (-6n + 5n2)) = 0

Combine like terms: 20n + -6n = 14n
(-24 + 14n + 5n2) = 0

Solving
-24 + 14n + 5n2 = 0

Solving for variable 'n'.

Factor a trinomial.
(-4 + -1n)(6 + -5n) = 0

Subproblem 1
Set the factor '(-4 + -1n)' equal to zero and attempt to solve:

Simplifying
-4 + -1n = 0

Solving
-4 + -1n = 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 + -1n = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -1n = 0 + 4
-1n = 0 + 4

Combine like terms: 0 + 4 = 4
-1n = 4

Divide each side by '-1'.
n = -4

Simplifying
n = -4
Subproblem 2
Set the factor '(6 + -5n)' equal to zero and attempt to solve:

Simplifying
6 + -5n = 0

Solving
6 + -5n = 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 + -5n = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -5n = 0 + -6
-5n = 0 + -6

Combine like terms: 0 + -6 = -6
-5n = -6

Divide each side by '-5'.
n = 1.2

Simplifying
n = 1.2
Solution
n = {-4, 1.2}