0=24x^2-24x-7

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Solution for 0=24x^2-24x-7 equation:


Simplifying
0 = 24x2 + -24x + -7

Reorder the terms:
0 = -7 + -24x + 24x2

Solving
0 = -7 + -24x + 24x2

Solving for variable 'x'.

Combine like terms: 0 + 7 = 7
7 + 24x + -24x2 = -7 + -24x + 24x2 + 7 + 24x + -24x2

Reorder the terms:
7 + 24x + -24x2 = -7 + 7 + -24x + 24x + 24x2 + -24x2

Combine like terms: -7 + 7 = 0
7 + 24x + -24x2 = 0 + -24x + 24x + 24x2 + -24x2
7 + 24x + -24x2 = -24x + 24x + 24x2 + -24x2

Combine like terms: -24x + 24x = 0
7 + 24x + -24x2 = 0 + 24x2 + -24x2
7 + 24x + -24x2 = 24x2 + -24x2

Combine like terms: 24x2 + -24x2 = 0
7 + 24x + -24x2 = 0

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

Divide each side by '-24'.
-0.2916666667 + -1x + x2 = 0

Move the constant term to the right:

Add '0.2916666667' to each side of the equation.
-0.2916666667 + -1x + 0.2916666667 + x2 = 0 + 0.2916666667

Reorder the terms:
-0.2916666667 + 0.2916666667 + -1x + x2 = 0 + 0.2916666667

Combine like terms: -0.2916666667 + 0.2916666667 = 0.0000000000
0.0000000000 + -1x + x2 = 0 + 0.2916666667
-1x + x2 = 0 + 0.2916666667

Combine like terms: 0 + 0.2916666667 = 0.2916666667
-1x + x2 = 0.2916666667

The x term is -1x.  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.
-1x + 0.25 + x2 = 0.2916666667 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 0.2916666667 + 0.25

Combine like terms: 0.2916666667 + 0.25 = 0.5416666667
0.25 + -1x + x2 = 0.5416666667

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 0.5416666667

Calculate the square root of the right side: 0.735980072

Break this problem into two subproblems by setting 
(x + -0.5) equal to 0.735980072 and -0.735980072.

Subproblem 1

x + -0.5 = 0.735980072 Simplifying x + -0.5 = 0.735980072 Reorder the terms: -0.5 + x = 0.735980072 Solving -0.5 + x = 0.735980072 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 = 0.735980072 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 0.735980072 + 0.5 x = 0.735980072 + 0.5 Combine like terms: 0.735980072 + 0.5 = 1.235980072 x = 1.235980072 Simplifying x = 1.235980072

Subproblem 2

x + -0.5 = -0.735980072 Simplifying x + -0.5 = -0.735980072 Reorder the terms: -0.5 + x = -0.735980072 Solving -0.5 + x = -0.735980072 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 = -0.735980072 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -0.735980072 + 0.5 x = -0.735980072 + 0.5 Combine like terms: -0.735980072 + 0.5 = -0.235980072 x = -0.235980072 Simplifying x = -0.235980072

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.235980072, -0.235980072}

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