2x^2+45x+24=0

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Solution for 2x^2+45x+24=0 equation:


Simplifying
2x2 + 45x + 24 = 0

Reorder the terms:
24 + 45x + 2x2 = 0

Solving
24 + 45x + 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 + 22.5x + x2 = 0

Move the constant term to the right:

Add '-12' to each side of the equation.
12 + 22.5x + -12 + x2 = 0 + -12

Reorder the terms:
12 + -12 + 22.5x + x2 = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 22.5x + x2 = 0 + -12
22.5x + x2 = 0 + -12

Combine like terms: 0 + -12 = -12
22.5x + x2 = -12

The x term is 22.5x.  Take half its coefficient (11.25).
Square it (126.5625) and add it to both sides.

Add '126.5625' to each side of the equation.
22.5x + 126.5625 + x2 = -12 + 126.5625

Reorder the terms:
126.5625 + 22.5x + x2 = -12 + 126.5625

Combine like terms: -12 + 126.5625 = 114.5625
126.5625 + 22.5x + x2 = 114.5625

Factor a perfect square on the left side:
(x + 11.25)(x + 11.25) = 114.5625

Calculate the square root of the right side: 10.703387314

Break this problem into two subproblems by setting 
(x + 11.25) equal to 10.703387314 and -10.703387314.

Subproblem 1

x + 11.25 = 10.703387314 Simplifying x + 11.25 = 10.703387314 Reorder the terms: 11.25 + x = 10.703387314 Solving 11.25 + x = 10.703387314 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11.25' to each side of the equation. 11.25 + -11.25 + x = 10.703387314 + -11.25 Combine like terms: 11.25 + -11.25 = 0.00 0.00 + x = 10.703387314 + -11.25 x = 10.703387314 + -11.25 Combine like terms: 10.703387314 + -11.25 = -0.546612686 x = -0.546612686 Simplifying x = -0.546612686

Subproblem 2

x + 11.25 = -10.703387314 Simplifying x + 11.25 = -10.703387314 Reorder the terms: 11.25 + x = -10.703387314 Solving 11.25 + x = -10.703387314 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11.25' to each side of the equation. 11.25 + -11.25 + x = -10.703387314 + -11.25 Combine like terms: 11.25 + -11.25 = 0.00 0.00 + x = -10.703387314 + -11.25 x = -10.703387314 + -11.25 Combine like terms: -10.703387314 + -11.25 = -21.953387314 x = -21.953387314 Simplifying x = -21.953387314

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.546612686, -21.953387314}

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