3x-1+2x^2(6)=

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Solution for 3x-1+2x^2(6)= equation:


Simplifying
3x + -1 + 2x2(6) = 0

Reorder the terms for easier multiplication:
3x + -1 + 2 * 6x2 = 0

Multiply 2 * 6
3x + -1 + 12x2 = 0

Reorder the terms:
-1 + 3x + 12x2 = 0

Solving
-1 + 3x + 12x2 = 0

Solving for variable 'x'.

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

Divide each side by '12'.
-0.08333333333 + 0.25x + x2 = 0

Move the constant term to the right:

Add '0.08333333333' to each side of the equation.
-0.08333333333 + 0.25x + 0.08333333333 + x2 = 0 + 0.08333333333

Reorder the terms:
-0.08333333333 + 0.08333333333 + 0.25x + x2 = 0 + 0.08333333333

Combine like terms: -0.08333333333 + 0.08333333333 = 0.00000000000
0.00000000000 + 0.25x + x2 = 0 + 0.08333333333
0.25x + x2 = 0 + 0.08333333333

Combine like terms: 0 + 0.08333333333 = 0.08333333333
0.25x + x2 = 0.08333333333

The x term is 0.25x.  Take half its coefficient (0.125).
Square it (0.015625) and add it to both sides.

Add '0.015625' to each side of the equation.
0.25x + 0.015625 + x2 = 0.08333333333 + 0.015625

Reorder the terms:
0.015625 + 0.25x + x2 = 0.08333333333 + 0.015625

Combine like terms: 0.08333333333 + 0.015625 = 0.09895833333
0.015625 + 0.25x + x2 = 0.09895833333

Factor a perfect square on the left side:
(x + 0.125)(x + 0.125) = 0.09895833333

Calculate the square root of the right side: 0.314576435

Break this problem into two subproblems by setting 
(x + 0.125) equal to 0.314576435 and -0.314576435.

Subproblem 1

x + 0.125 = 0.314576435 Simplifying x + 0.125 = 0.314576435 Reorder the terms: 0.125 + x = 0.314576435 Solving 0.125 + x = 0.314576435 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.125' to each side of the equation. 0.125 + -0.125 + x = 0.314576435 + -0.125 Combine like terms: 0.125 + -0.125 = 0.000 0.000 + x = 0.314576435 + -0.125 x = 0.314576435 + -0.125 Combine like terms: 0.314576435 + -0.125 = 0.189576435 x = 0.189576435 Simplifying x = 0.189576435

Subproblem 2

x + 0.125 = -0.314576435 Simplifying x + 0.125 = -0.314576435 Reorder the terms: 0.125 + x = -0.314576435 Solving 0.125 + x = -0.314576435 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.125' to each side of the equation. 0.125 + -0.125 + x = -0.314576435 + -0.125 Combine like terms: 0.125 + -0.125 = 0.000 0.000 + x = -0.314576435 + -0.125 x = -0.314576435 + -0.125 Combine like terms: -0.314576435 + -0.125 = -0.439576435 x = -0.439576435 Simplifying x = -0.439576435

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.189576435, -0.439576435}

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