6x^2-3x-14=0

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Solution for 6x^2-3x-14=0 equation:


Simplifying
6x2 + -3x + -14 = 0

Reorder the terms:
-14 + -3x + 6x2 = 0

Solving
-14 + -3x + 6x2 = 0

Solving for variable 'x'.

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

Divide each side by '6'.
-2.333333333 + -0.5x + x2 = 0

Move the constant term to the right:

Add '2.333333333' to each side of the equation.
-2.333333333 + -0.5x + 2.333333333 + x2 = 0 + 2.333333333

Reorder the terms:
-2.333333333 + 2.333333333 + -0.5x + x2 = 0 + 2.333333333

Combine like terms: -2.333333333 + 2.333333333 = 0.000000000
0.000000000 + -0.5x + x2 = 0 + 2.333333333
-0.5x + x2 = 0 + 2.333333333

Combine like terms: 0 + 2.333333333 = 2.333333333
-0.5x + x2 = 2.333333333

The x term is -0.5x.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5x + 0.0625 + x2 = 2.333333333 + 0.0625

Reorder the terms:
0.0625 + -0.5x + x2 = 2.333333333 + 0.0625

Combine like terms: 2.333333333 + 0.0625 = 2.395833333
0.0625 + -0.5x + x2 = 2.395833333

Factor a perfect square on the left side:
(x + -0.25)(x + -0.25) = 2.395833333

Calculate the square root of the right side: 1.547847968

Break this problem into two subproblems by setting 
(x + -0.25) equal to 1.547847968 and -1.547847968.

Subproblem 1

x + -0.25 = 1.547847968 Simplifying x + -0.25 = 1.547847968 Reorder the terms: -0.25 + x = 1.547847968 Solving -0.25 + x = 1.547847968 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = 1.547847968 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = 1.547847968 + 0.25 x = 1.547847968 + 0.25 Combine like terms: 1.547847968 + 0.25 = 1.797847968 x = 1.797847968 Simplifying x = 1.797847968

Subproblem 2

x + -0.25 = -1.547847968 Simplifying x + -0.25 = -1.547847968 Reorder the terms: -0.25 + x = -1.547847968 Solving -0.25 + x = -1.547847968 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = -1.547847968 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = -1.547847968 + 0.25 x = -1.547847968 + 0.25 Combine like terms: -1.547847968 + 0.25 = -1.297847968 x = -1.297847968 Simplifying x = -1.297847968

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.797847968, -1.297847968}

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