x^2-12.5x-24=0

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Solution for x^2-12.5x-24=0 equation:


Simplifying
x2 + -12.5x + -24 = 0

Reorder the terms:
-24 + -12.5x + x2 = 0

Solving
-24 + -12.5x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '24' to each side of the equation.
-24 + -12.5x + 24 + x2 = 0 + 24

Reorder the terms:
-24 + 24 + -12.5x + x2 = 0 + 24

Combine like terms: -24 + 24 = 0
0 + -12.5x + x2 = 0 + 24
-12.5x + x2 = 0 + 24

Combine like terms: 0 + 24 = 24
-12.5x + x2 = 24

The x term is -12.5x.  Take half its coefficient (-6.25).
Square it (39.0625) and add it to both sides.

Add '39.0625' to each side of the equation.
-12.5x + 39.0625 + x2 = 24 + 39.0625

Reorder the terms:
39.0625 + -12.5x + x2 = 24 + 39.0625

Combine like terms: 24 + 39.0625 = 63.0625
39.0625 + -12.5x + x2 = 63.0625

Factor a perfect square on the left side:
(x + -6.25)(x + -6.25) = 63.0625

Calculate the square root of the right side: 7.941190087

Break this problem into two subproblems by setting 
(x + -6.25) equal to 7.941190087 and -7.941190087.

Subproblem 1

x + -6.25 = 7.941190087 Simplifying x + -6.25 = 7.941190087 Reorder the terms: -6.25 + x = 7.941190087 Solving -6.25 + x = 7.941190087 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.25' to each side of the equation. -6.25 + 6.25 + x = 7.941190087 + 6.25 Combine like terms: -6.25 + 6.25 = 0.00 0.00 + x = 7.941190087 + 6.25 x = 7.941190087 + 6.25 Combine like terms: 7.941190087 + 6.25 = 14.191190087 x = 14.191190087 Simplifying x = 14.191190087

Subproblem 2

x + -6.25 = -7.941190087 Simplifying x + -6.25 = -7.941190087 Reorder the terms: -6.25 + x = -7.941190087 Solving -6.25 + x = -7.941190087 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.25' to each side of the equation. -6.25 + 6.25 + x = -7.941190087 + 6.25 Combine like terms: -6.25 + 6.25 = 0.00 0.00 + x = -7.941190087 + 6.25 x = -7.941190087 + 6.25 Combine like terms: -7.941190087 + 6.25 = -1.691190087 x = -1.691190087 Simplifying x = -1.691190087

Solution

The solution to the problem is based on the solutions from the subproblems. x = {14.191190087, -1.691190087}

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