(4x+12x^2-27)=

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Solution for (4x+12x^2-27)= equation:


Simplifying
(4x + 12x2 + -27) = 0

Reorder the terms:
(-27 + 4x + 12x2) = 0

Remove parenthesis around (-27 + 4x + 12x2)
-27 + 4x + 12x2 = 0

Solving
-27 + 4x + 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'.
-2.25 + 0.3333333333x + x2 = 0

Move the constant term to the right:

Add '2.25' to each side of the equation.
-2.25 + 0.3333333333x + 2.25 + x2 = 0 + 2.25

Reorder the terms:
-2.25 + 2.25 + 0.3333333333x + x2 = 0 + 2.25

Combine like terms: -2.25 + 2.25 = 0.00
0.00 + 0.3333333333x + x2 = 0 + 2.25
0.3333333333x + x2 = 0 + 2.25

Combine like terms: 0 + 2.25 = 2.25
0.3333333333x + x2 = 2.25

The x term is 0.3333333333x.  Take half its coefficient (0.1666666667).
Square it (0.02777777779) and add it to both sides.

Add '0.02777777779' to each side of the equation.
0.3333333333x + 0.02777777779 + x2 = 2.25 + 0.02777777779

Reorder the terms:
0.02777777779 + 0.3333333333x + x2 = 2.25 + 0.02777777779

Combine like terms: 2.25 + 0.02777777779 = 2.27777777779
0.02777777779 + 0.3333333333x + x2 = 2.27777777779

Factor a perfect square on the left side:
(x + 0.1666666667)(x + 0.1666666667) = 2.27777777779

Calculate the square root of the right side: 1.509230856

Break this problem into two subproblems by setting 
(x + 0.1666666667) equal to 1.509230856 and -1.509230856.

Subproblem 1

x + 0.1666666667 = 1.509230856 Simplifying x + 0.1666666667 = 1.509230856 Reorder the terms: 0.1666666667 + x = 1.509230856 Solving 0.1666666667 + x = 1.509230856 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1666666667' to each side of the equation. 0.1666666667 + -0.1666666667 + x = 1.509230856 + -0.1666666667 Combine like terms: 0.1666666667 + -0.1666666667 = 0.0000000000 0.0000000000 + x = 1.509230856 + -0.1666666667 x = 1.509230856 + -0.1666666667 Combine like terms: 1.509230856 + -0.1666666667 = 1.3425641893 x = 1.3425641893 Simplifying x = 1.3425641893

Subproblem 2

x + 0.1666666667 = -1.509230856 Simplifying x + 0.1666666667 = -1.509230856 Reorder the terms: 0.1666666667 + x = -1.509230856 Solving 0.1666666667 + x = -1.509230856 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1666666667' to each side of the equation. 0.1666666667 + -0.1666666667 + x = -1.509230856 + -0.1666666667 Combine like terms: 0.1666666667 + -0.1666666667 = 0.0000000000 0.0000000000 + x = -1.509230856 + -0.1666666667 x = -1.509230856 + -0.1666666667 Combine like terms: -1.509230856 + -0.1666666667 = -1.6758975227 x = -1.6758975227 Simplifying x = -1.6758975227

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.3425641893, -1.6758975227}

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