5x^2-19x-14=0

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Solution for 5x^2-19x-14=0 equation:


Simplifying
5x2 + -19x + -14 = 0

Reorder the terms:
-14 + -19x + 5x2 = 0

Solving
-14 + -19x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
-2.8 + -3.8x + x2 = 0

Move the constant term to the right:

Add '2.8' to each side of the equation.
-2.8 + -3.8x + 2.8 + x2 = 0 + 2.8

Reorder the terms:
-2.8 + 2.8 + -3.8x + x2 = 0 + 2.8

Combine like terms: -2.8 + 2.8 = 0.0
0.0 + -3.8x + x2 = 0 + 2.8
-3.8x + x2 = 0 + 2.8

Combine like terms: 0 + 2.8 = 2.8
-3.8x + x2 = 2.8

The x term is -3.8x.  Take half its coefficient (-1.9).
Square it (3.61) and add it to both sides.

Add '3.61' to each side of the equation.
-3.8x + 3.61 + x2 = 2.8 + 3.61

Reorder the terms:
3.61 + -3.8x + x2 = 2.8 + 3.61

Combine like terms: 2.8 + 3.61 = 6.41
3.61 + -3.8x + x2 = 6.41

Factor a perfect square on the left side:
(x + -1.9)(x + -1.9) = 6.41

Calculate the square root of the right side: 2.53179778

Break this problem into two subproblems by setting 
(x + -1.9) equal to 2.53179778 and -2.53179778.

Subproblem 1

x + -1.9 = 2.53179778 Simplifying x + -1.9 = 2.53179778 Reorder the terms: -1.9 + x = 2.53179778 Solving -1.9 + x = 2.53179778 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.9' to each side of the equation. -1.9 + 1.9 + x = 2.53179778 + 1.9 Combine like terms: -1.9 + 1.9 = 0.0 0.0 + x = 2.53179778 + 1.9 x = 2.53179778 + 1.9 Combine like terms: 2.53179778 + 1.9 = 4.43179778 x = 4.43179778 Simplifying x = 4.43179778

Subproblem 2

x + -1.9 = -2.53179778 Simplifying x + -1.9 = -2.53179778 Reorder the terms: -1.9 + x = -2.53179778 Solving -1.9 + x = -2.53179778 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.9' to each side of the equation. -1.9 + 1.9 + x = -2.53179778 + 1.9 Combine like terms: -1.9 + 1.9 = 0.0 0.0 + x = -2.53179778 + 1.9 x = -2.53179778 + 1.9 Combine like terms: -2.53179778 + 1.9 = -0.63179778 x = -0.63179778 Simplifying x = -0.63179778

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.43179778, -0.63179778}

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