14x^2+17x-19=0

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Solution for 14x^2+17x-19=0 equation:


Simplifying
14x2 + 17x + -19 = 0

Reorder the terms:
-19 + 17x + 14x2 = 0

Solving
-19 + 17x + 14x2 = 0

Solving for variable 'x'.

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

Divide each side by '14'.
-1.357142857 + 1.214285714x + x2 = 0

Move the constant term to the right:

Add '1.357142857' to each side of the equation.
-1.357142857 + 1.214285714x + 1.357142857 + x2 = 0 + 1.357142857

Reorder the terms:
-1.357142857 + 1.357142857 + 1.214285714x + x2 = 0 + 1.357142857

Combine like terms: -1.357142857 + 1.357142857 = 0.000000000
0.000000000 + 1.214285714x + x2 = 0 + 1.357142857
1.214285714x + x2 = 0 + 1.357142857

Combine like terms: 0 + 1.357142857 = 1.357142857
1.214285714x + x2 = 1.357142857

The x term is 1.214285714x.  Take half its coefficient (0.607142857).
Square it (0.3686224488) and add it to both sides.

Add '0.3686224488' to each side of the equation.
1.214285714x + 0.3686224488 + x2 = 1.357142857 + 0.3686224488

Reorder the terms:
0.3686224488 + 1.214285714x + x2 = 1.357142857 + 0.3686224488

Combine like terms: 1.357142857 + 0.3686224488 = 1.7257653058
0.3686224488 + 1.214285714x + x2 = 1.7257653058

Factor a perfect square on the left side:
(x + 0.607142857)(x + 0.607142857) = 1.7257653058

Calculate the square root of the right side: 1.313683868

Break this problem into two subproblems by setting 
(x + 0.607142857) equal to 1.313683868 and -1.313683868.

Subproblem 1

x + 0.607142857 = 1.313683868 Simplifying x + 0.607142857 = 1.313683868 Reorder the terms: 0.607142857 + x = 1.313683868 Solving 0.607142857 + x = 1.313683868 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.607142857' to each side of the equation. 0.607142857 + -0.607142857 + x = 1.313683868 + -0.607142857 Combine like terms: 0.607142857 + -0.607142857 = 0.000000000 0.000000000 + x = 1.313683868 + -0.607142857 x = 1.313683868 + -0.607142857 Combine like terms: 1.313683868 + -0.607142857 = 0.706541011 x = 0.706541011 Simplifying x = 0.706541011

Subproblem 2

x + 0.607142857 = -1.313683868 Simplifying x + 0.607142857 = -1.313683868 Reorder the terms: 0.607142857 + x = -1.313683868 Solving 0.607142857 + x = -1.313683868 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.607142857' to each side of the equation. 0.607142857 + -0.607142857 + x = -1.313683868 + -0.607142857 Combine like terms: 0.607142857 + -0.607142857 = 0.000000000 0.000000000 + x = -1.313683868 + -0.607142857 x = -1.313683868 + -0.607142857 Combine like terms: -1.313683868 + -0.607142857 = -1.920826725 x = -1.920826725 Simplifying x = -1.920826725

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.706541011, -1.920826725}

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