9000=x^2-18x+56

Solution for 9000=x^2-18x+56 equation:

Simplifying
9000 = x2 + -18x + 56

Reorder the terms:
9000 = 56 + -18x + x2

Solving
9000 = 56 + -18x + x2

Solving for variable 'x'.

Combine like terms: 9000 + -56 = 8944
8944 + 18x + -1x2 = 56 + -18x + x2 + -56 + 18x + -1x2

Reorder the terms:
8944 + 18x + -1x2 = 56 + -56 + -18x + 18x + x2 + -1x2

Combine like terms: 56 + -56 = 0
8944 + 18x + -1x2 = 0 + -18x + 18x + x2 + -1x2
8944 + 18x + -1x2 = -18x + 18x + x2 + -1x2

Combine like terms: -18x + 18x = 0
8944 + 18x + -1x2 = 0 + x2 + -1x2
8944 + 18x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
8944 + 18x + -1x2 = 0

Factor a trinomial.
(104 + -1x)(86 + x) = 0

Subproblem 1
Set the factor '(104 + -1x)' equal to zero and attempt to solve:

Simplifying
104 + -1x = 0

Solving
104 + -1x = 0

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

Add '-104' to each side of the equation.
104 + -104 + -1x = 0 + -104

Combine like terms: 104 + -104 = 0
0 + -1x = 0 + -104
-1x = 0 + -104

Combine like terms: 0 + -104 = -104
-1x = -104

Divide each side by '-1'.
x = 104

Simplifying
x = 104
Subproblem 2
Set the factor '(86 + x)' equal to zero and attempt to solve:

Simplifying
86 + x = 0

Solving
86 + x = 0

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

Add '-86' to each side of the equation.
86 + -86 + x = 0 + -86

Combine like terms: 86 + -86 = 0
0 + x = 0 + -86
x = 0 + -86

Combine like terms: 0 + -86 = -86
x = -86

Simplifying
x = -86
Solution
x = {104, -86}