6x^2+30x+19=0

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Solution for 6x^2+30x+19=0 equation:


Simplifying
6x2 + 30x + 19 = 0

Reorder the terms:
19 + 30x + 6x2 = 0

Solving
19 + 30x + 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'.
3.166666667 + 5x + x2 = 0

Move the constant term to the right:

Add '-3.166666667' to each side of the equation.
3.166666667 + 5x + -3.166666667 + x2 = 0 + -3.166666667

Reorder the terms:
3.166666667 + -3.166666667 + 5x + x2 = 0 + -3.166666667

Combine like terms: 3.166666667 + -3.166666667 = 0.000000000
0.000000000 + 5x + x2 = 0 + -3.166666667
5x + x2 = 0 + -3.166666667

Combine like terms: 0 + -3.166666667 = -3.166666667
5x + x2 = -3.166666667

The x term is 5x.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5x + 6.25 + x2 = -3.166666667 + 6.25

Reorder the terms:
6.25 + 5x + x2 = -3.166666667 + 6.25

Combine like terms: -3.166666667 + 6.25 = 3.083333333
6.25 + 5x + x2 = 3.083333333

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = 3.083333333

Calculate the square root of the right side: 1.755942292

Break this problem into two subproblems by setting 
(x + 2.5) equal to 1.755942292 and -1.755942292.

Subproblem 1

x + 2.5 = 1.755942292 Simplifying x + 2.5 = 1.755942292 Reorder the terms: 2.5 + x = 1.755942292 Solving 2.5 + x = 1.755942292 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = 1.755942292 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 1.755942292 + -2.5 x = 1.755942292 + -2.5 Combine like terms: 1.755942292 + -2.5 = -0.744057708 x = -0.744057708 Simplifying x = -0.744057708

Subproblem 2

x + 2.5 = -1.755942292 Simplifying x + 2.5 = -1.755942292 Reorder the terms: 2.5 + x = -1.755942292 Solving 2.5 + x = -1.755942292 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = -1.755942292 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -1.755942292 + -2.5 x = -1.755942292 + -2.5 Combine like terms: -1.755942292 + -2.5 = -4.255942292 x = -4.255942292 Simplifying x = -4.255942292

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.744057708, -4.255942292}

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