6x^2+7x+3=26

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Solution for 6x^2+7x+3=26 equation:


Simplifying
6x2 + 7x + 3 = 26

Reorder the terms:
3 + 7x + 6x2 = 26

Solving
3 + 7x + 6x2 = 26

Solving for variable 'x'.

Reorder the terms:
3 + -26 + 7x + 6x2 = 26 + -26

Combine like terms: 3 + -26 = -23
-23 + 7x + 6x2 = 26 + -26

Combine like terms: 26 + -26 = 0
-23 + 7x + 6x2 = 0

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

Divide each side by '6'.
-3.833333333 + 1.166666667x + x2 = 0

Move the constant term to the right:

Add '3.833333333' to each side of the equation.
-3.833333333 + 1.166666667x + 3.833333333 + x2 = 0 + 3.833333333

Reorder the terms:
-3.833333333 + 3.833333333 + 1.166666667x + x2 = 0 + 3.833333333

Combine like terms: -3.833333333 + 3.833333333 = 0.000000000
0.000000000 + 1.166666667x + x2 = 0 + 3.833333333
1.166666667x + x2 = 0 + 3.833333333

Combine like terms: 0 + 3.833333333 = 3.833333333
1.166666667x + x2 = 3.833333333

The x term is 1.166666667x.  Take half its coefficient (0.5833333335).
Square it (0.3402777780) and add it to both sides.

Add '0.3402777780' to each side of the equation.
1.166666667x + 0.3402777780 + x2 = 3.833333333 + 0.3402777780

Reorder the terms:
0.3402777780 + 1.166666667x + x2 = 3.833333333 + 0.3402777780

Combine like terms: 3.833333333 + 0.3402777780 = 4.173611111
0.3402777780 + 1.166666667x + x2 = 4.173611111

Factor a perfect square on the left side:
(x + 0.5833333335)(x + 0.5833333335) = 4.173611111

Calculate the square root of the right side: 2.042941779

Break this problem into two subproblems by setting 
(x + 0.5833333335) equal to 2.042941779 and -2.042941779.

Subproblem 1

x + 0.5833333335 = 2.042941779 Simplifying x + 0.5833333335 = 2.042941779 Reorder the terms: 0.5833333335 + x = 2.042941779 Solving 0.5833333335 + x = 2.042941779 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5833333335' to each side of the equation. 0.5833333335 + -0.5833333335 + x = 2.042941779 + -0.5833333335 Combine like terms: 0.5833333335 + -0.5833333335 = 0.0000000000 0.0000000000 + x = 2.042941779 + -0.5833333335 x = 2.042941779 + -0.5833333335 Combine like terms: 2.042941779 + -0.5833333335 = 1.4596084455 x = 1.4596084455 Simplifying x = 1.4596084455

Subproblem 2

x + 0.5833333335 = -2.042941779 Simplifying x + 0.5833333335 = -2.042941779 Reorder the terms: 0.5833333335 + x = -2.042941779 Solving 0.5833333335 + x = -2.042941779 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5833333335' to each side of the equation. 0.5833333335 + -0.5833333335 + x = -2.042941779 + -0.5833333335 Combine like terms: 0.5833333335 + -0.5833333335 = 0.0000000000 0.0000000000 + x = -2.042941779 + -0.5833333335 x = -2.042941779 + -0.5833333335 Combine like terms: -2.042941779 + -0.5833333335 = -2.6262751125 x = -2.6262751125 Simplifying x = -2.6262751125

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.4596084455, -2.6262751125}

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