27x^2+12x-2=0

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Solution for 27x^2+12x-2=0 equation:


Simplifying
27x2 + 12x + -2 = 0

Reorder the terms:
-2 + 12x + 27x2 = 0

Solving
-2 + 12x + 27x2 = 0

Solving for variable 'x'.

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

Divide each side by '27'.
-0.07407407407 + 0.4444444444x + x2 = 0

Move the constant term to the right:

Add '0.07407407407' to each side of the equation.
-0.07407407407 + 0.4444444444x + 0.07407407407 + x2 = 0 + 0.07407407407

Reorder the terms:
-0.07407407407 + 0.07407407407 + 0.4444444444x + x2 = 0 + 0.07407407407

Combine like terms: -0.07407407407 + 0.07407407407 = 0.00000000000
0.00000000000 + 0.4444444444x + x2 = 0 + 0.07407407407
0.4444444444x + x2 = 0 + 0.07407407407

Combine like terms: 0 + 0.07407407407 = 0.07407407407
0.4444444444x + x2 = 0.07407407407

The x term is 0.4444444444x.  Take half its coefficient (0.2222222222).
Square it (0.04938271604) and add it to both sides.

Add '0.04938271604' to each side of the equation.
0.4444444444x + 0.04938271604 + x2 = 0.07407407407 + 0.04938271604

Reorder the terms:
0.04938271604 + 0.4444444444x + x2 = 0.07407407407 + 0.04938271604

Combine like terms: 0.07407407407 + 0.04938271604 = 0.12345679011
0.04938271604 + 0.4444444444x + x2 = 0.12345679011

Factor a perfect square on the left side:
(x + 0.2222222222)(x + 0.2222222222) = 0.12345679011

Calculate the square root of the right side: 0.351364184

Break this problem into two subproblems by setting 
(x + 0.2222222222) equal to 0.351364184 and -0.351364184.

Subproblem 1

x + 0.2222222222 = 0.351364184 Simplifying x + 0.2222222222 = 0.351364184 Reorder the terms: 0.2222222222 + x = 0.351364184 Solving 0.2222222222 + x = 0.351364184 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2222222222' to each side of the equation. 0.2222222222 + -0.2222222222 + x = 0.351364184 + -0.2222222222 Combine like terms: 0.2222222222 + -0.2222222222 = 0.0000000000 0.0000000000 + x = 0.351364184 + -0.2222222222 x = 0.351364184 + -0.2222222222 Combine like terms: 0.351364184 + -0.2222222222 = 0.1291419618 x = 0.1291419618 Simplifying x = 0.1291419618

Subproblem 2

x + 0.2222222222 = -0.351364184 Simplifying x + 0.2222222222 = -0.351364184 Reorder the terms: 0.2222222222 + x = -0.351364184 Solving 0.2222222222 + x = -0.351364184 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2222222222' to each side of the equation. 0.2222222222 + -0.2222222222 + x = -0.351364184 + -0.2222222222 Combine like terms: 0.2222222222 + -0.2222222222 = 0.0000000000 0.0000000000 + x = -0.351364184 + -0.2222222222 x = -0.351364184 + -0.2222222222 Combine like terms: -0.351364184 + -0.2222222222 = -0.5735864062 x = -0.5735864062 Simplifying x = -0.5735864062

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.1291419618, -0.5735864062}

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