33+19x+2x^2=0

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Solution for 33+19x+2x^2=0 equation:


Simplifying
33 + 19x + 2x2 = 0

Solving
33 + 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'.
16.5 + 9.5x + x2 = 0

Move the constant term to the right:

Add '-16.5' to each side of the equation.
16.5 + 9.5x + -16.5 + x2 = 0 + -16.5

Reorder the terms:
16.5 + -16.5 + 9.5x + x2 = 0 + -16.5

Combine like terms: 16.5 + -16.5 = 0.0
0.0 + 9.5x + x2 = 0 + -16.5
9.5x + x2 = 0 + -16.5

Combine like terms: 0 + -16.5 = -16.5
9.5x + x2 = -16.5

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 = -16.5 + 22.5625

Reorder the terms:
22.5625 + 9.5x + x2 = -16.5 + 22.5625

Combine like terms: -16.5 + 22.5625 = 6.0625
22.5625 + 9.5x + x2 = 6.0625

Factor a perfect square on the left side:
(x + 4.75)(x + 4.75) = 6.0625

Calculate the square root of the right side: 2.46221445

Break this problem into two subproblems by setting 
(x + 4.75) equal to 2.46221445 and -2.46221445.

Subproblem 1

x + 4.75 = 2.46221445 Simplifying x + 4.75 = 2.46221445 Reorder the terms: 4.75 + x = 2.46221445 Solving 4.75 + x = 2.46221445 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 = 2.46221445 + -4.75 Combine like terms: 4.75 + -4.75 = 0.00 0.00 + x = 2.46221445 + -4.75 x = 2.46221445 + -4.75 Combine like terms: 2.46221445 + -4.75 = -2.28778555 x = -2.28778555 Simplifying x = -2.28778555

Subproblem 2

x + 4.75 = -2.46221445 Simplifying x + 4.75 = -2.46221445 Reorder the terms: 4.75 + x = -2.46221445 Solving 4.75 + x = -2.46221445 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 = -2.46221445 + -4.75 Combine like terms: 4.75 + -4.75 = 0.00 0.00 + x = -2.46221445 + -4.75 x = -2.46221445 + -4.75 Combine like terms: -2.46221445 + -4.75 = -7.21221445 x = -7.21221445 Simplifying x = -7.21221445

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-2.28778555, -7.21221445}

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