14x^2-17x-5=0

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Solution for 14x^2-17x-5=0 equation:


Simplifying
14x2 + -17x + -5 = 0

Reorder the terms:
-5 + -17x + 14x2 = 0

Solving
-5 + -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'.
-0.3571428571 + -1.214285714x + x2 = 0

Move the constant term to the right:

Add '0.3571428571' to each side of the equation.
-0.3571428571 + -1.214285714x + 0.3571428571 + x2 = 0 + 0.3571428571

Reorder the terms:
-0.3571428571 + 0.3571428571 + -1.214285714x + x2 = 0 + 0.3571428571

Combine like terms: -0.3571428571 + 0.3571428571 = 0.0000000000
0.0000000000 + -1.214285714x + x2 = 0 + 0.3571428571
-1.214285714x + x2 = 0 + 0.3571428571

Combine like terms: 0 + 0.3571428571 = 0.3571428571
-1.214285714x + x2 = 0.3571428571

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 = 0.3571428571 + 0.3686224488

Reorder the terms:
0.3686224488 + -1.214285714x + x2 = 0.3571428571 + 0.3686224488

Combine like terms: 0.3571428571 + 0.3686224488 = 0.7257653059
0.3686224488 + -1.214285714x + x2 = 0.7257653059

Factor a perfect square on the left side:
(x + -0.607142857)(x + -0.607142857) = 0.7257653059

Calculate the square root of the right side: 0.851918603

Break this problem into two subproblems by setting 
(x + -0.607142857) equal to 0.851918603 and -0.851918603.

Subproblem 1

x + -0.607142857 = 0.851918603 Simplifying x + -0.607142857 = 0.851918603 Reorder the terms: -0.607142857 + x = 0.851918603 Solving -0.607142857 + x = 0.851918603 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 = 0.851918603 + 0.607142857 Combine like terms: -0.607142857 + 0.607142857 = 0.000000000 0.000000000 + x = 0.851918603 + 0.607142857 x = 0.851918603 + 0.607142857 Combine like terms: 0.851918603 + 0.607142857 = 1.45906146 x = 1.45906146 Simplifying x = 1.45906146

Subproblem 2

x + -0.607142857 = -0.851918603 Simplifying x + -0.607142857 = -0.851918603 Reorder the terms: -0.607142857 + x = -0.851918603 Solving -0.607142857 + x = -0.851918603 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 = -0.851918603 + 0.607142857 Combine like terms: -0.607142857 + 0.607142857 = 0.000000000 0.000000000 + x = -0.851918603 + 0.607142857 x = -0.851918603 + 0.607142857 Combine like terms: -0.851918603 + 0.607142857 = -0.244775746 x = -0.244775746 Simplifying x = -0.244775746

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.45906146, -0.244775746}

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