45x^2+6x-2=0

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Solution for 45x^2+6x-2=0 equation:


Simplifying
45x2 + 6x + -2 = 0

Reorder the terms:
-2 + 6x + 45x2 = 0

Solving
-2 + 6x + 45x2 = 0

Solving for variable 'x'.

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

Divide each side by '45'.
-0.04444444444 + 0.1333333333x + x2 = 0

Move the constant term to the right:

Add '0.04444444444' to each side of the equation.
-0.04444444444 + 0.1333333333x + 0.04444444444 + x2 = 0 + 0.04444444444

Reorder the terms:
-0.04444444444 + 0.04444444444 + 0.1333333333x + x2 = 0 + 0.04444444444

Combine like terms: -0.04444444444 + 0.04444444444 = 0.00000000000
0.00000000000 + 0.1333333333x + x2 = 0 + 0.04444444444
0.1333333333x + x2 = 0 + 0.04444444444

Combine like terms: 0 + 0.04444444444 = 0.04444444444
0.1333333333x + x2 = 0.04444444444

The x term is 0.1333333333x.  Take half its coefficient (0.06666666665).
Square it (0.004444444442) and add it to both sides.

Add '0.004444444442' to each side of the equation.
0.1333333333x + 0.004444444442 + x2 = 0.04444444444 + 0.004444444442

Reorder the terms:
0.004444444442 + 0.1333333333x + x2 = 0.04444444444 + 0.004444444442

Combine like terms: 0.04444444444 + 0.004444444442 = 0.048888888882
0.004444444442 + 0.1333333333x + x2 = 0.048888888882

Factor a perfect square on the left side:
(x + 0.06666666665)(x + 0.06666666665) = 0.048888888882

Calculate the square root of the right side: 0.221108319

Break this problem into two subproblems by setting 
(x + 0.06666666665) equal to 0.221108319 and -0.221108319.

Subproblem 1

x + 0.06666666665 = 0.221108319 Simplifying x + 0.06666666665 = 0.221108319 Reorder the terms: 0.06666666665 + x = 0.221108319 Solving 0.06666666665 + x = 0.221108319 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.06666666665' to each side of the equation. 0.06666666665 + -0.06666666665 + x = 0.221108319 + -0.06666666665 Combine like terms: 0.06666666665 + -0.06666666665 = 0.00000000000 0.00000000000 + x = 0.221108319 + -0.06666666665 x = 0.221108319 + -0.06666666665 Combine like terms: 0.221108319 + -0.06666666665 = 0.15444165235 x = 0.15444165235 Simplifying x = 0.15444165235

Subproblem 2

x + 0.06666666665 = -0.221108319 Simplifying x + 0.06666666665 = -0.221108319 Reorder the terms: 0.06666666665 + x = -0.221108319 Solving 0.06666666665 + x = -0.221108319 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.06666666665' to each side of the equation. 0.06666666665 + -0.06666666665 + x = -0.221108319 + -0.06666666665 Combine like terms: 0.06666666665 + -0.06666666665 = 0.00000000000 0.00000000000 + x = -0.221108319 + -0.06666666665 x = -0.221108319 + -0.06666666665 Combine like terms: -0.221108319 + -0.06666666665 = -0.28777498565 x = -0.28777498565 Simplifying x = -0.28777498565

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.15444165235, -0.28777498565}

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