19x^2+11x-14=0

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Solution for 19x^2+11x-14=0 equation:


Simplifying
19x2 + 11x + -14 = 0

Reorder the terms:
-14 + 11x + 19x2 = 0

Solving
-14 + 11x + 19x2 = 0

Solving for variable 'x'.

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

Divide each side by '19'.
-0.7368421053 + 0.5789473684x + x2 = 0

Move the constant term to the right:

Add '0.7368421053' to each side of the equation.
-0.7368421053 + 0.5789473684x + 0.7368421053 + x2 = 0 + 0.7368421053

Reorder the terms:
-0.7368421053 + 0.7368421053 + 0.5789473684x + x2 = 0 + 0.7368421053

Combine like terms: -0.7368421053 + 0.7368421053 = 0.0000000000
0.0000000000 + 0.5789473684x + x2 = 0 + 0.7368421053
0.5789473684x + x2 = 0 + 0.7368421053

Combine like terms: 0 + 0.7368421053 = 0.7368421053
0.5789473684x + x2 = 0.7368421053

The x term is 0.5789473684x.  Take half its coefficient (0.2894736842).
Square it (0.08379501384) and add it to both sides.

Add '0.08379501384' to each side of the equation.
0.5789473684x + 0.08379501384 + x2 = 0.7368421053 + 0.08379501384

Reorder the terms:
0.08379501384 + 0.5789473684x + x2 = 0.7368421053 + 0.08379501384

Combine like terms: 0.7368421053 + 0.08379501384 = 0.82063711914
0.08379501384 + 0.5789473684x + x2 = 0.82063711914

Factor a perfect square on the left side:
(x + 0.2894736842)(x + 0.2894736842) = 0.82063711914

Calculate the square root of the right side: 0.905890236

Break this problem into two subproblems by setting 
(x + 0.2894736842) equal to 0.905890236 and -0.905890236.

Subproblem 1

x + 0.2894736842 = 0.905890236 Simplifying x + 0.2894736842 = 0.905890236 Reorder the terms: 0.2894736842 + x = 0.905890236 Solving 0.2894736842 + x = 0.905890236 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2894736842' to each side of the equation. 0.2894736842 + -0.2894736842 + x = 0.905890236 + -0.2894736842 Combine like terms: 0.2894736842 + -0.2894736842 = 0.0000000000 0.0000000000 + x = 0.905890236 + -0.2894736842 x = 0.905890236 + -0.2894736842 Combine like terms: 0.905890236 + -0.2894736842 = 0.6164165518 x = 0.6164165518 Simplifying x = 0.6164165518

Subproblem 2

x + 0.2894736842 = -0.905890236 Simplifying x + 0.2894736842 = -0.905890236 Reorder the terms: 0.2894736842 + x = -0.905890236 Solving 0.2894736842 + x = -0.905890236 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2894736842' to each side of the equation. 0.2894736842 + -0.2894736842 + x = -0.905890236 + -0.2894736842 Combine like terms: 0.2894736842 + -0.2894736842 = 0.0000000000 0.0000000000 + x = -0.905890236 + -0.2894736842 x = -0.905890236 + -0.2894736842 Combine like terms: -0.905890236 + -0.2894736842 = -1.1953639202 x = -1.1953639202 Simplifying x = -1.1953639202

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.6164165518, -1.1953639202}

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