6x^2+14x+7=

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Solution for 6x^2+14x+7= equation:


Simplifying
6x2 + 14x + 7 = 0

Reorder the terms:
7 + 14x + 6x2 = 0

Solving
7 + 14x + 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'.
1.166666667 + 2.333333333x + x2 = 0

Move the constant term to the right:

Add '-1.166666667' to each side of the equation.
1.166666667 + 2.333333333x + -1.166666667 + x2 = 0 + -1.166666667

Reorder the terms:
1.166666667 + -1.166666667 + 2.333333333x + x2 = 0 + -1.166666667

Combine like terms: 1.166666667 + -1.166666667 = 0.000000000
0.000000000 + 2.333333333x + x2 = 0 + -1.166666667
2.333333333x + x2 = 0 + -1.166666667

Combine like terms: 0 + -1.166666667 = -1.166666667
2.333333333x + x2 = -1.166666667

The x term is 2.333333333x.  Take half its coefficient (1.166666667).
Square it (1.361111112) and add it to both sides.

Add '1.361111112' to each side of the equation.
2.333333333x + 1.361111112 + x2 = -1.166666667 + 1.361111112

Reorder the terms:
1.361111112 + 2.333333333x + x2 = -1.166666667 + 1.361111112

Combine like terms: -1.166666667 + 1.361111112 = 0.194444445
1.361111112 + 2.333333333x + x2 = 0.194444445

Factor a perfect square on the left side:
(x + 1.166666667)(x + 1.166666667) = 0.194444445

Calculate the square root of the right side: 0.440958552

Break this problem into two subproblems by setting 
(x + 1.166666667) equal to 0.440958552 and -0.440958552.

Subproblem 1

x + 1.166666667 = 0.440958552 Simplifying x + 1.166666667 = 0.440958552 Reorder the terms: 1.166666667 + x = 0.440958552 Solving 1.166666667 + x = 0.440958552 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.166666667' to each side of the equation. 1.166666667 + -1.166666667 + x = 0.440958552 + -1.166666667 Combine like terms: 1.166666667 + -1.166666667 = 0.000000000 0.000000000 + x = 0.440958552 + -1.166666667 x = 0.440958552 + -1.166666667 Combine like terms: 0.440958552 + -1.166666667 = -0.725708115 x = -0.725708115 Simplifying x = -0.725708115

Subproblem 2

x + 1.166666667 = -0.440958552 Simplifying x + 1.166666667 = -0.440958552 Reorder the terms: 1.166666667 + x = -0.440958552 Solving 1.166666667 + x = -0.440958552 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.166666667' to each side of the equation. 1.166666667 + -1.166666667 + x = -0.440958552 + -1.166666667 Combine like terms: 1.166666667 + -1.166666667 = 0.000000000 0.000000000 + x = -0.440958552 + -1.166666667 x = -0.440958552 + -1.166666667 Combine like terms: -0.440958552 + -1.166666667 = -1.607625219 x = -1.607625219 Simplifying x = -1.607625219

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.725708115, -1.607625219}

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