48x^2+48x-13=0

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


Simplifying
48x2 + 48x + -13 = 0

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

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

Move the constant term to the right:

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

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

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

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

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

Add '0.25' to each side of the equation.
 + 0.25 + x2 = 0.2708333333 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + x2 = 0.2708333333 + 0.25

Combine like terms: 0.2708333333 + 0.25 = 0.5208333333
1.25 + x2 = 0.5208333333

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 0.5208333333

Calculate the square root of the right side: 0.721687836

Break this problem into two subproblems by setting 
(x + 0.5) equal to 0.721687836 and -0.721687836.

Subproblem 1

x + 0.5 = 0.721687836 Simplifying x + 0.5 = 0.721687836 Reorder the terms: 0.5 + x = 0.721687836 Solving 0.5 + x = 0.721687836 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 0.721687836 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 0.721687836 + -0.5 x = 0.721687836 + -0.5 Combine like terms: 0.721687836 + -0.5 = 0.221687836 x = 0.221687836 Simplifying x = 0.221687836

Subproblem 2

x + 0.5 = -0.721687836 Simplifying x + 0.5 = -0.721687836 Reorder the terms: 0.5 + x = -0.721687836 Solving 0.5 + x = -0.721687836 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -0.721687836 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -0.721687836 + -0.5 x = -0.721687836 + -0.5 Combine like terms: -0.721687836 + -0.5 = -1.221687836 x = -1.221687836 Simplifying x = -1.221687836

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.221687836, -1.221687836}

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