2x^2-9x-736=0

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Solution for 2x^2-9x-736=0 equation:


Simplifying
2x2 + -9x + -736 = 0

Reorder the terms:
-736 + -9x + 2x2 = 0

Solving
-736 + -9x + 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'.
-368 + -4.5x + x2 = 0

Move the constant term to the right:

Add '368' to each side of the equation.
-368 + -4.5x + 368 + x2 = 0 + 368

Reorder the terms:
-368 + 368 + -4.5x + x2 = 0 + 368

Combine like terms: -368 + 368 = 0
0 + -4.5x + x2 = 0 + 368
-4.5x + x2 = 0 + 368

Combine like terms: 0 + 368 = 368
-4.5x + x2 = 368

The x term is -4.5x.  Take half its coefficient (-2.25).
Square it (5.0625) and add it to both sides.

Add '5.0625' to each side of the equation.
-4.5x + 5.0625 + x2 = 368 + 5.0625

Reorder the terms:
5.0625 + -4.5x + x2 = 368 + 5.0625

Combine like terms: 368 + 5.0625 = 373.0625
5.0625 + -4.5x + x2 = 373.0625

Factor a perfect square on the left side:
(x + -2.25)(x + -2.25) = 373.0625

Calculate the square root of the right side: 19.314825912

Break this problem into two subproblems by setting 
(x + -2.25) equal to 19.314825912 and -19.314825912.

Subproblem 1

x + -2.25 = 19.314825912 Simplifying x + -2.25 = 19.314825912 Reorder the terms: -2.25 + x = 19.314825912 Solving -2.25 + x = 19.314825912 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.25' to each side of the equation. -2.25 + 2.25 + x = 19.314825912 + 2.25 Combine like terms: -2.25 + 2.25 = 0.00 0.00 + x = 19.314825912 + 2.25 x = 19.314825912 + 2.25 Combine like terms: 19.314825912 + 2.25 = 21.564825912 x = 21.564825912 Simplifying x = 21.564825912

Subproblem 2

x + -2.25 = -19.314825912 Simplifying x + -2.25 = -19.314825912 Reorder the terms: -2.25 + x = -19.314825912 Solving -2.25 + x = -19.314825912 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.25' to each side of the equation. -2.25 + 2.25 + x = -19.314825912 + 2.25 Combine like terms: -2.25 + 2.25 = 0.00 0.00 + x = -19.314825912 + 2.25 x = -19.314825912 + 2.25 Combine like terms: -19.314825912 + 2.25 = -17.064825912 x = -17.064825912 Simplifying x = -17.064825912

Solution

The solution to the problem is based on the solutions from the subproblems. x = {21.564825912, -17.064825912}

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