-2-2.25=(n^2-3n-2.25)

Solution for -2-2.25=(n^2-3n-2.25) equation:

Simplifying
-2 + -2.25 = (n2 + -3n + -2.25)

Combine like terms: -2 + -2.25 = -4.25
-4.25 = (n2 + -3n + -2.25)

Reorder the terms:
-4.25 = (-2.25 + -3n + n2)

Remove parenthesis around (-2.25 + -3n + n2)
-4.25 = -2.25 + -3n + n2

Solving
-4.25 = -2.25 + -3n + n2

Solving for variable 'n'.

Combine like terms: -4.25 + 2.25 = -2
-2 + 3n + -1n2 = -2.25 + -3n + n2 + 2.25 + 3n + -1n2

Reorder the terms:
-2 + 3n + -1n2 = -2.25 + 2.25 + -3n + 3n + n2 + -1n2

Combine like terms: -2.25 + 2.25 = 0.00
-2 + 3n + -1n2 = 0.00 + -3n + 3n + n2 + -1n2
-2 + 3n + -1n2 = -3n + 3n + n2 + -1n2

Combine like terms: -3n + 3n = 0
-2 + 3n + -1n2 = 0 + n2 + -1n2
-2 + 3n + -1n2 = n2 + -1n2

Combine like terms: n2 + -1n2 = 0
-2 + 3n + -1n2 = 0

Factor a trinomial.
(-2 + n)(1 + -1n) = 0

Subproblem 1
Set the factor '(-2 + n)' equal to zero and attempt to solve:

Simplifying
-2 + n = 0

Solving
-2 + n = 0

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

Add '2' to each side of the equation.
-2 + 2 + n = 0 + 2

Combine like terms: -2 + 2 = 0
0 + n = 0 + 2
n = 0 + 2

Combine like terms: 0 + 2 = 2
n = 2

Simplifying
n = 2
Subproblem 2
Set the factor '(1 + -1n)' equal to zero and attempt to solve:

Simplifying
1 + -1n = 0

Solving
1 + -1n = 0

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

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

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

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

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

Simplifying
n = 1
Solution
n = {2, 1}