48x^2-24x-13=0

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Solution for 48x^2-24x-13=0 equation:


Simplifying
48x2 + -24x + -13 = 0

Reorder the terms:
-13 + -24x + 48x2 = 0

Solving
-13 + -24x + 48x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
48 the coefficient of the squared term: 

Divide each side by '48'.
-0.2708333333 + -0.5x + x2 = 0

Move the constant term to the right:

Add '0.2708333333' to each side of the equation.
-0.2708333333 + -0.5x + 0.2708333333 + x2 = 0 + 0.2708333333

Reorder the terms:
-0.2708333333 + 0.2708333333 + -0.5x + x2 = 0 + 0.2708333333

Combine like terms: -0.2708333333 + 0.2708333333 = 0.0000000000
0.0000000000 + -0.5x + x2 = 0 + 0.2708333333
-0.5x + x2 = 0 + 0.2708333333

Combine like terms: 0 + 0.2708333333 = 0.2708333333
-0.5x + x2 = 0.2708333333

The x term is -0.5x.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5x + 0.0625 + x2 = 0.2708333333 + 0.0625

Reorder the terms:
0.0625 + -0.5x + x2 = 0.2708333333 + 0.0625

Combine like terms: 0.2708333333 + 0.0625 = 0.3333333333
0.0625 + -0.5x + x2 = 0.3333333333

Factor a perfect square on the left side:
(x + -0.25)(x + -0.25) = 0.3333333333

Calculate the square root of the right side: 0.577350269

Break this problem into two subproblems by setting 
(x + -0.25) equal to 0.577350269 and -0.577350269.

Subproblem 1

x + -0.25 = 0.577350269 Simplifying x + -0.25 = 0.577350269 Reorder the terms: -0.25 + x = 0.577350269 Solving -0.25 + x = 0.577350269 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = 0.577350269 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = 0.577350269 + 0.25 x = 0.577350269 + 0.25 Combine like terms: 0.577350269 + 0.25 = 0.827350269 x = 0.827350269 Simplifying x = 0.827350269

Subproblem 2

x + -0.25 = -0.577350269 Simplifying x + -0.25 = -0.577350269 Reorder the terms: -0.25 + x = -0.577350269 Solving -0.25 + x = -0.577350269 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = -0.577350269 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = -0.577350269 + 0.25 x = -0.577350269 + 0.25 Combine like terms: -0.577350269 + 0.25 = -0.327350269 x = -0.327350269 Simplifying x = -0.327350269

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.827350269, -0.327350269}

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