n^2+6n-75=-3

Solution for n^2+6n-75=-3 equation:

Simplifying
n2 + 6n + -75 = -3

Reorder the terms:
-75 + 6n + n2 = -3

Solving
-75 + 6n + n2 = -3

Solving for variable 'n'.

Reorder the terms:
-75 + 3 + 6n + n2 = -3 + 3

Combine like terms: -75 + 3 = -72
-72 + 6n + n2 = -3 + 3

Combine like terms: -3 + 3 = 0
-72 + 6n + n2 = 0

Factor a trinomial.
(-12 + -1n)(6 + -1n) = 0

Subproblem 1
Set the factor '(-12 + -1n)' equal to zero and attempt to solve:

Simplifying
-12 + -1n = 0

Solving
-12 + -1n = 0

Move all terms containing n to the left, all other terms to the right.

Add '12' to each side of the equation.
-12 + 12 + -1n = 0 + 12

Combine like terms: -12 + 12 = 0
0 + -1n = 0 + 12
-1n = 0 + 12

Combine like terms: 0 + 12 = 12
-1n = 12

Divide each side by '-1'.
n = -12

Simplifying
n = -12
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 = {-12, 6}