2x^2+19x-93=0

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Solution for 2x^2+19x-93=0 equation:


Simplifying
2x2 + 19x + -93 = 0

Reorder the terms:
-93 + 19x + 2x2 = 0

Solving
-93 + 19x + 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'.
-46.5 + 9.5x + x2 = 0

Move the constant term to the right:

Add '46.5' to each side of the equation.
-46.5 + 9.5x + 46.5 + x2 = 0 + 46.5

Reorder the terms:
-46.5 + 46.5 + 9.5x + x2 = 0 + 46.5

Combine like terms: -46.5 + 46.5 = 0.0
0.0 + 9.5x + x2 = 0 + 46.5
9.5x + x2 = 0 + 46.5

Combine like terms: 0 + 46.5 = 46.5
9.5x + x2 = 46.5

The x term is 9.5x.  Take half its coefficient (4.75).
Square it (22.5625) and add it to both sides.

Add '22.5625' to each side of the equation.
9.5x + 22.5625 + x2 = 46.5 + 22.5625

Reorder the terms:
22.5625 + 9.5x + x2 = 46.5 + 22.5625

Combine like terms: 46.5 + 22.5625 = 69.0625
22.5625 + 9.5x + x2 = 69.0625

Factor a perfect square on the left side:
(x + 4.75)(x + 4.75) = 69.0625

Calculate the square root of the right side: 8.310385069

Break this problem into two subproblems by setting 
(x + 4.75) equal to 8.310385069 and -8.310385069.

Subproblem 1

x + 4.75 = 8.310385069 Simplifying x + 4.75 = 8.310385069 Reorder the terms: 4.75 + x = 8.310385069 Solving 4.75 + x = 8.310385069 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.75' to each side of the equation. 4.75 + -4.75 + x = 8.310385069 + -4.75 Combine like terms: 4.75 + -4.75 = 0.00 0.00 + x = 8.310385069 + -4.75 x = 8.310385069 + -4.75 Combine like terms: 8.310385069 + -4.75 = 3.560385069 x = 3.560385069 Simplifying x = 3.560385069

Subproblem 2

x + 4.75 = -8.310385069 Simplifying x + 4.75 = -8.310385069 Reorder the terms: 4.75 + x = -8.310385069 Solving 4.75 + x = -8.310385069 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.75' to each side of the equation. 4.75 + -4.75 + x = -8.310385069 + -4.75 Combine like terms: 4.75 + -4.75 = 0.00 0.00 + x = -8.310385069 + -4.75 x = -8.310385069 + -4.75 Combine like terms: -8.310385069 + -4.75 = -13.060385069 x = -13.060385069 Simplifying x = -13.060385069

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.560385069, -13.060385069}

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