-24x^2-39x+13=0

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Solution for -24x^2-39x+13=0 equation:


Simplifying
-24x2 + -39x + 13 = 0

Reorder the terms:
13 + -39x + -24x2 = 0

Solving
13 + -39x + -24x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-24 the coefficient of the squared term: 

Divide each side by '-24'.
-0.5416666667 + 1.625x + x2 = 0

Move the constant term to the right:

Add '0.5416666667' to each side of the equation.
-0.5416666667 + 1.625x + 0.5416666667 + x2 = 0 + 0.5416666667

Reorder the terms:
-0.5416666667 + 0.5416666667 + 1.625x + x2 = 0 + 0.5416666667

Combine like terms: -0.5416666667 + 0.5416666667 = 0.0000000000
0.0000000000 + 1.625x + x2 = 0 + 0.5416666667
1.625x + x2 = 0 + 0.5416666667

Combine like terms: 0 + 0.5416666667 = 0.5416666667
1.625x + x2 = 0.5416666667

The x term is 1.625x.  Take half its coefficient (0.8125).
Square it (0.66015625) and add it to both sides.

Add '0.66015625' to each side of the equation.
1.625x + 0.66015625 + x2 = 0.5416666667 + 0.66015625

Reorder the terms:
0.66015625 + 1.625x + x2 = 0.5416666667 + 0.66015625

Combine like terms: 0.5416666667 + 0.66015625 = 1.2018229167
0.66015625 + 1.625x + x2 = 1.2018229167

Factor a perfect square on the left side:
(x + 0.8125)(x + 0.8125) = 1.2018229167

Calculate the square root of the right side: 1.096276843

Break this problem into two subproblems by setting 
(x + 0.8125) equal to 1.096276843 and -1.096276843.

Subproblem 1

x + 0.8125 = 1.096276843 Simplifying x + 0.8125 = 1.096276843 Reorder the terms: 0.8125 + x = 1.096276843 Solving 0.8125 + x = 1.096276843 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8125' to each side of the equation. 0.8125 + -0.8125 + x = 1.096276843 + -0.8125 Combine like terms: 0.8125 + -0.8125 = 0.0000 0.0000 + x = 1.096276843 + -0.8125 x = 1.096276843 + -0.8125 Combine like terms: 1.096276843 + -0.8125 = 0.283776843 x = 0.283776843 Simplifying x = 0.283776843

Subproblem 2

x + 0.8125 = -1.096276843 Simplifying x + 0.8125 = -1.096276843 Reorder the terms: 0.8125 + x = -1.096276843 Solving 0.8125 + x = -1.096276843 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8125' to each side of the equation. 0.8125 + -0.8125 + x = -1.096276843 + -0.8125 Combine like terms: 0.8125 + -0.8125 = 0.0000 0.0000 + x = -1.096276843 + -0.8125 x = -1.096276843 + -0.8125 Combine like terms: -1.096276843 + -0.8125 = -1.908776843 x = -1.908776843 Simplifying x = -1.908776843

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.283776843, -1.908776843}

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