x^2-28x-5280=0

Solution for x^2-28x-5280=0 equation:

Simplifying
x2 + -28x + -5280 = 0

Reorder the terms:
-5280 + -28x + x2 = 0

Solving
-5280 + -28x + x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-60 + -1x)(88 + -1x) = 0

Subproblem 1
Set the factor '(-60 + -1x)' equal to zero and attempt to solve:

Simplifying
-60 + -1x = 0

Solving
-60 + -1x = 0

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

Add '60' to each side of the equation.
-60 + 60 + -1x = 0 + 60

Combine like terms: -60 + 60 = 0
0 + -1x = 0 + 60
-1x = 0 + 60

Combine like terms: 0 + 60 = 60
-1x = 60

Divide each side by '-1'.
x = -60

Simplifying
x = -60
Subproblem 2
Set the factor '(88 + -1x)' equal to zero and attempt to solve:

Simplifying
88 + -1x = 0

Solving
88 + -1x = 0

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

Add '-88' to each side of the equation.
88 + -88 + -1x = 0 + -88

Combine like terms: 88 + -88 = 0
0 + -1x = 0 + -88
-1x = 0 + -88

Combine like terms: 0 + -88 = -88
-1x = -88

Divide each side by '-1'.
x = 88

Simplifying
x = 88
Solution
x = {-60, 88}