0.66x^2-2.33x+1=0

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Solution for 0.66x^2-2.33x+1=0 equation:


Simplifying
0.66x2 + -2.33x + 1 = 0

Reorder the terms:
1 + -2.33x + 0.66x2 = 0

Solving
1 + -2.33x + 0.66x2 = 0

Solving for variable 'x'.

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

Divide each side by '0.66'.
1.515151515 + -3.53030303x + x2 = 0

Move the constant term to the right:

Add '-1.515151515' to each side of the equation.
1.515151515 + -3.53030303x + -1.515151515 + x2 = 0 + -1.515151515

Reorder the terms:
1.515151515 + -1.515151515 + -3.53030303x + x2 = 0 + -1.515151515

Combine like terms: 1.515151515 + -1.515151515 = 0.000000000
0.000000000 + -3.53030303x + x2 = 0 + -1.515151515
-3.53030303x + x2 = 0 + -1.515151515

Combine like terms: 0 + -1.515151515 = -1.515151515
-3.53030303x + x2 = -1.515151515

The x term is -3.53030303x.  Take half its coefficient (-1.765151515).
Square it (3.115759871) and add it to both sides.

Add '3.115759871' to each side of the equation.
-3.53030303x + 3.115759871 + x2 = -1.515151515 + 3.115759871

Reorder the terms:
3.115759871 + -3.53030303x + x2 = -1.515151515 + 3.115759871

Combine like terms: -1.515151515 + 3.115759871 = 1.600608356
3.115759871 + -3.53030303x + x2 = 1.600608356

Factor a perfect square on the left side:
(x + -1.765151515)(x + -1.765151515) = 1.600608356

Calculate the square root of the right side: 1.265151515

Break this problem into two subproblems by setting 
(x + -1.765151515) equal to 1.265151515 and -1.265151515.

Subproblem 1

x + -1.765151515 = 1.265151515 Simplifying x + -1.765151515 = 1.265151515 Reorder the terms: -1.765151515 + x = 1.265151515 Solving -1.765151515 + x = 1.265151515 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.765151515' to each side of the equation. -1.765151515 + 1.765151515 + x = 1.265151515 + 1.765151515 Combine like terms: -1.765151515 + 1.765151515 = 0.000000000 0.000000000 + x = 1.265151515 + 1.765151515 x = 1.265151515 + 1.765151515 Combine like terms: 1.265151515 + 1.765151515 = 3.03030303 x = 3.03030303 Simplifying x = 3.03030303

Subproblem 2

x + -1.765151515 = -1.265151515 Simplifying x + -1.765151515 = -1.265151515 Reorder the terms: -1.765151515 + x = -1.265151515 Solving -1.765151515 + x = -1.265151515 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.765151515' to each side of the equation. -1.765151515 + 1.765151515 + x = -1.265151515 + 1.765151515 Combine like terms: -1.765151515 + 1.765151515 = 0.000000000 0.000000000 + x = -1.265151515 + 1.765151515 x = -1.265151515 + 1.765151515 Combine like terms: -1.265151515 + 1.765151515 = 0.5 x = 0.5 Simplifying x = 0.5

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.03030303, 0.5}

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