4x^2-13x-24=0

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Solution for 4x^2-13x-24=0 equation:


Simplifying
4x2 + -13x + -24 = 0

Reorder the terms:
-24 + -13x + 4x2 = 0

Solving
-24 + -13x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
-6 + -3.25x + x2 = 0

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + -3.25x + 6 + x2 = 0 + 6

Reorder the terms:
-6 + 6 + -3.25x + x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -3.25x + x2 = 0 + 6
-3.25x + x2 = 0 + 6

Combine like terms: 0 + 6 = 6
-3.25x + x2 = 6

The x term is -3.25x.  Take half its coefficient (-1.625).
Square it (2.640625) and add it to both sides.

Add '2.640625' to each side of the equation.
-3.25x + 2.640625 + x2 = 6 + 2.640625

Reorder the terms:
2.640625 + -3.25x + x2 = 6 + 2.640625

Combine like terms: 6 + 2.640625 = 8.640625
2.640625 + -3.25x + x2 = 8.640625

Factor a perfect square on the left side:
(x + -1.625)(x + -1.625) = 8.640625

Calculate the square root of the right side: 2.939494004

Break this problem into two subproblems by setting 
(x + -1.625) equal to 2.939494004 and -2.939494004.

Subproblem 1

x + -1.625 = 2.939494004 Simplifying x + -1.625 = 2.939494004 Reorder the terms: -1.625 + x = 2.939494004 Solving -1.625 + x = 2.939494004 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.625' to each side of the equation. -1.625 + 1.625 + x = 2.939494004 + 1.625 Combine like terms: -1.625 + 1.625 = 0.000 0.000 + x = 2.939494004 + 1.625 x = 2.939494004 + 1.625 Combine like terms: 2.939494004 + 1.625 = 4.564494004 x = 4.564494004 Simplifying x = 4.564494004

Subproblem 2

x + -1.625 = -2.939494004 Simplifying x + -1.625 = -2.939494004 Reorder the terms: -1.625 + x = -2.939494004 Solving -1.625 + x = -2.939494004 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.625' to each side of the equation. -1.625 + 1.625 + x = -2.939494004 + 1.625 Combine like terms: -1.625 + 1.625 = 0.000 0.000 + x = -2.939494004 + 1.625 x = -2.939494004 + 1.625 Combine like terms: -2.939494004 + 1.625 = -1.314494004 x = -1.314494004 Simplifying x = -1.314494004

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.564494004, -1.314494004}

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