3x^2+6x=0.33

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Solution for 3x^2+6x=0.33 equation:


Simplifying
3x2 + 6x = 0.33

Reorder the terms:
6x + 3x2 = 0.33

Solving
6x + 3x2 = 0.33

Solving for variable 'x'.

Reorder the terms:
-0.33 + 6x + 3x2 = 0.33 + -0.33

Combine like terms: 0.33 + -0.33 = 0.00
-0.33 + 6x + 3x2 = 0.00

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

Divide each side by '3'.
-0.11 + 2x + x2 = 0.00

Move the constant term to the right:

Add '0.11' to each side of the equation.
-0.11 + 2x + 0.11 + x2 = 0.00 + 0.11

Reorder the terms:
-0.11 + 0.11 + 2x + x2 = 0.00 + 0.11

Combine like terms: -0.11 + 0.11 = 0.00
0.00 + 2x + x2 = 0.00 + 0.11
2x + x2 = 0.00 + 0.11

Combine like terms: 0.00 + 0.11 = 0.11
2x + x2 = 0.11

The x term is 2x.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2x + 1 + x2 = 0.11 + 1

Reorder the terms:
1 + 2x + x2 = 0.11 + 1

Combine like terms: 0.11 + 1 = 1.11
1 + 2x + x2 = 1.11

Factor a perfect square on the left side:
(x + 1)(x + 1) = 1.11

Calculate the square root of the right side: 1.053565375

Break this problem into two subproblems by setting 
(x + 1) equal to 1.053565375 and -1.053565375.

Subproblem 1

x + 1 = 1.053565375 Simplifying x + 1 = 1.053565375 Reorder the terms: 1 + x = 1.053565375 Solving 1 + x = 1.053565375 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 1.053565375 + -1 Combine like terms: 1 + -1 = 0 0 + x = 1.053565375 + -1 x = 1.053565375 + -1 Combine like terms: 1.053565375 + -1 = 0.053565375 x = 0.053565375 Simplifying x = 0.053565375

Subproblem 2

x + 1 = -1.053565375 Simplifying x + 1 = -1.053565375 Reorder the terms: 1 + x = -1.053565375 Solving 1 + x = -1.053565375 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -1.053565375 + -1 Combine like terms: 1 + -1 = 0 0 + x = -1.053565375 + -1 x = -1.053565375 + -1 Combine like terms: -1.053565375 + -1 = -2.053565375 x = -2.053565375 Simplifying x = -2.053565375

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.053565375, -2.053565375}

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