x^2-24x-45=0

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Solution for x^2-24x-45=0 equation:


Simplifying
x2 + -24x + -45 = 0

Reorder the terms:
-45 + -24x + x2 = 0

Solving
-45 + -24x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '45' to each side of the equation.
-45 + -24x + 45 + x2 = 0 + 45

Reorder the terms:
-45 + 45 + -24x + x2 = 0 + 45

Combine like terms: -45 + 45 = 0
0 + -24x + x2 = 0 + 45
-24x + x2 = 0 + 45

Combine like terms: 0 + 45 = 45
-24x + x2 = 45

The x term is -24x.  Take half its coefficient (-12).
Square it (144) and add it to both sides.

Add '144' to each side of the equation.
-24x + 144 + x2 = 45 + 144

Reorder the terms:
144 + -24x + x2 = 45 + 144

Combine like terms: 45 + 144 = 189
144 + -24x + x2 = 189

Factor a perfect square on the left side:
(x + -12)(x + -12) = 189

Calculate the square root of the right side: 13.747727085

Break this problem into two subproblems by setting 
(x + -12) equal to 13.747727085 and -13.747727085.

Subproblem 1

x + -12 = 13.747727085 Simplifying x + -12 = 13.747727085 Reorder the terms: -12 + x = 13.747727085 Solving -12 + x = 13.747727085 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + x = 13.747727085 + 12 Combine like terms: -12 + 12 = 0 0 + x = 13.747727085 + 12 x = 13.747727085 + 12 Combine like terms: 13.747727085 + 12 = 25.747727085 x = 25.747727085 Simplifying x = 25.747727085

Subproblem 2

x + -12 = -13.747727085 Simplifying x + -12 = -13.747727085 Reorder the terms: -12 + x = -13.747727085 Solving -12 + x = -13.747727085 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + x = -13.747727085 + 12 Combine like terms: -12 + 12 = 0 0 + x = -13.747727085 + 12 x = -13.747727085 + 12 Combine like terms: -13.747727085 + 12 = -1.747727085 x = -1.747727085 Simplifying x = -1.747727085

Solution

The solution to the problem is based on the solutions from the subproblems. x = {25.747727085, -1.747727085}

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