6x^2+36x+49=0

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Solution for 6x^2+36x+49=0 equation:


Simplifying
6x2 + 36x + 49 = 0

Reorder the terms:
49 + 36x + 6x2 = 0

Solving
49 + 36x + 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'.
8.166666667 + 6x + x2 = 0

Move the constant term to the right:

Add '-8.166666667' to each side of the equation.
8.166666667 + 6x + -8.166666667 + x2 = 0 + -8.166666667

Reorder the terms:
8.166666667 + -8.166666667 + 6x + x2 = 0 + -8.166666667

Combine like terms: 8.166666667 + -8.166666667 = 0.000000000
0.000000000 + 6x + x2 = 0 + -8.166666667
6x + x2 = 0 + -8.166666667

Combine like terms: 0 + -8.166666667 = -8.166666667
6x + x2 = -8.166666667

The x term is 6x.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6x + 9 + x2 = -8.166666667 + 9

Reorder the terms:
9 + 6x + x2 = -8.166666667 + 9

Combine like terms: -8.166666667 + 9 = 0.833333333
9 + 6x + x2 = 0.833333333

Factor a perfect square on the left side:
(x + 3)(x + 3) = 0.833333333

Calculate the square root of the right side: 0.912870929

Break this problem into two subproblems by setting 
(x + 3) equal to 0.912870929 and -0.912870929.

Subproblem 1

x + 3 = 0.912870929 Simplifying x + 3 = 0.912870929 Reorder the terms: 3 + x = 0.912870929 Solving 3 + x = 0.912870929 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 0.912870929 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0.912870929 + -3 x = 0.912870929 + -3 Combine like terms: 0.912870929 + -3 = -2.087129071 x = -2.087129071 Simplifying x = -2.087129071

Subproblem 2

x + 3 = -0.912870929 Simplifying x + 3 = -0.912870929 Reorder the terms: 3 + x = -0.912870929 Solving 3 + x = -0.912870929 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -0.912870929 + -3 Combine like terms: 3 + -3 = 0 0 + x = -0.912870929 + -3 x = -0.912870929 + -3 Combine like terms: -0.912870929 + -3 = -3.912870929 x = -3.912870929 Simplifying x = -3.912870929

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-2.087129071, -3.912870929}

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