5x^2+10x-24=0

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Solution for 5x^2+10x-24=0 equation:


Simplifying
5x2 + 10x + -24 = 0

Reorder the terms:
-24 + 10x + 5x2 = 0

Solving
-24 + 10x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
-4.8 + 2x + x2 = 0

Move the constant term to the right:

Add '4.8' to each side of the equation.
-4.8 + 2x + 4.8 + x2 = 0 + 4.8

Reorder the terms:
-4.8 + 4.8 + 2x + x2 = 0 + 4.8

Combine like terms: -4.8 + 4.8 = 0.0
0.0 + 2x + x2 = 0 + 4.8
2x + x2 = 0 + 4.8

Combine like terms: 0 + 4.8 = 4.8
2x + x2 = 4.8

The x term is 2x.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2x + 1 + x2 = 4.8 + 1

Reorder the terms:
1 + 2x + x2 = 4.8 + 1

Combine like terms: 4.8 + 1 = 5.8
1 + 2x + x2 = 5.8

Factor a perfect square on the left side:
(x + 1)(x + 1) = 5.8

Calculate the square root of the right side: 2.408318916

Break this problem into two subproblems by setting 
(x + 1) equal to 2.408318916 and -2.408318916.

Subproblem 1

x + 1 = 2.408318916 Simplifying x + 1 = 2.408318916 Reorder the terms: 1 + x = 2.408318916 Solving 1 + x = 2.408318916 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 2.408318916 + -1 Combine like terms: 1 + -1 = 0 0 + x = 2.408318916 + -1 x = 2.408318916 + -1 Combine like terms: 2.408318916 + -1 = 1.408318916 x = 1.408318916 Simplifying x = 1.408318916

Subproblem 2

x + 1 = -2.408318916 Simplifying x + 1 = -2.408318916 Reorder the terms: 1 + x = -2.408318916 Solving 1 + x = -2.408318916 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -2.408318916 + -1 Combine like terms: 1 + -1 = 0 0 + x = -2.408318916 + -1 x = -2.408318916 + -1 Combine like terms: -2.408318916 + -1 = -3.408318916 x = -3.408318916 Simplifying x = -3.408318916

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.408318916, -3.408318916}

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