6x^2+x=3.25

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Solution for 6x^2+x=3.25 equation:


Simplifying
6x2 + x = 3.25

Reorder the terms:
x + 6x2 = 3.25

Solving
x + 6x2 = 3.25

Solving for variable 'x'.

Reorder the terms:
-3.25 + x + 6x2 = 3.25 + -3.25

Combine like terms: 3.25 + -3.25 = 0.00
-3.25 + x + 6x2 = 0.00

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

Divide each side by '6'.
-0.5416666667 + 0.1666666667x + x2 = 0.00

Move the constant term to the right:

Add '0.5416666667' to each side of the equation.
-0.5416666667 + 0.1666666667x + 0.5416666667 + x2 = 0.00 + 0.5416666667

Reorder the terms:
-0.5416666667 + 0.5416666667 + 0.1666666667x + x2 = 0.00 + 0.5416666667

Combine like terms: -0.5416666667 + 0.5416666667 = 0.0000000000
0.0000000000 + 0.1666666667x + x2 = 0.00 + 0.5416666667
0.1666666667x + x2 = 0.00 + 0.5416666667

Combine like terms: 0.00 + 0.5416666667 = 0.5416666667
0.1666666667x + x2 = 0.5416666667

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
0.1666666667x + 0.25 + x2 = 0.5416666667 + 0.25

Reorder the terms:
0.25 + 0.1666666667x + x2 = 0.5416666667 + 0.25

Combine like terms: 0.5416666667 + 0.25 = 0.7916666667
0.25 + 0.1666666667x + x2 = 0.7916666667

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 0.7916666667

Calculate the square root of the right side: 0.889756521

Break this problem into two subproblems by setting 
(x + 0.5) equal to 0.889756521 and -0.889756521.

Subproblem 1

x + 0.5 = 0.889756521 Simplifying x + 0.5 = 0.889756521 Reorder the terms: 0.5 + x = 0.889756521 Solving 0.5 + x = 0.889756521 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 0.889756521 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 0.889756521 + -0.5 x = 0.889756521 + -0.5 Combine like terms: 0.889756521 + -0.5 = 0.389756521 x = 0.389756521 Simplifying x = 0.389756521

Subproblem 2

x + 0.5 = -0.889756521 Simplifying x + 0.5 = -0.889756521 Reorder the terms: 0.5 + x = -0.889756521 Solving 0.5 + x = -0.889756521 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -0.889756521 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -0.889756521 + -0.5 x = -0.889756521 + -0.5 Combine like terms: -0.889756521 + -0.5 = -1.389756521 x = -1.389756521 Simplifying x = -1.389756521

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.389756521, -1.389756521}

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