2x^2-24-5x=0

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Solution for 2x^2-24-5x=0 equation:


Simplifying
2x2 + -24 + -5x = 0

Reorder the terms:
-24 + -5x + 2x2 = 0

Solving
-24 + -5x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
-12 + -2.5x + x2 = 0

Move the constant term to the right:

Add '12' to each side of the equation.
-12 + -2.5x + 12 + x2 = 0 + 12

Reorder the terms:
-12 + 12 + -2.5x + x2 = 0 + 12

Combine like terms: -12 + 12 = 0
0 + -2.5x + x2 = 0 + 12
-2.5x + x2 = 0 + 12

Combine like terms: 0 + 12 = 12
-2.5x + x2 = 12

The x term is -2.5x.  Take half its coefficient (-1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
-2.5x + 1.5625 + x2 = 12 + 1.5625

Reorder the terms:
1.5625 + -2.5x + x2 = 12 + 1.5625

Combine like terms: 12 + 1.5625 = 13.5625
1.5625 + -2.5x + x2 = 13.5625

Factor a perfect square on the left side:
(x + -1.25)(x + -1.25) = 13.5625

Calculate the square root of the right side: 3.682729966

Break this problem into two subproblems by setting 
(x + -1.25) equal to 3.682729966 and -3.682729966.

Subproblem 1

x + -1.25 = 3.682729966 Simplifying x + -1.25 = 3.682729966 Reorder the terms: -1.25 + x = 3.682729966 Solving -1.25 + x = 3.682729966 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = 3.682729966 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = 3.682729966 + 1.25 x = 3.682729966 + 1.25 Combine like terms: 3.682729966 + 1.25 = 4.932729966 x = 4.932729966 Simplifying x = 4.932729966

Subproblem 2

x + -1.25 = -3.682729966 Simplifying x + -1.25 = -3.682729966 Reorder the terms: -1.25 + x = -3.682729966 Solving -1.25 + x = -3.682729966 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = -3.682729966 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = -3.682729966 + 1.25 x = -3.682729966 + 1.25 Combine like terms: -3.682729966 + 1.25 = -2.432729966 x = -2.432729966 Simplifying x = -2.432729966

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.932729966, -2.432729966}

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