3x^2-10x-201=0

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Solution for 3x^2-10x-201=0 equation: 


Simplifying
3x2 + -10x + -201 = 0

Reorder the terms:
-201 + -10x + 3x2 = 0

Solving
-201 + -10x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
-67 + -3.333333333x + x2 = 0

Move the constant term to the right:

Add '67' to each side of the equation.
-67 + -3.333333333x + 67 + x2 = 0 + 67

Reorder the terms:
-67 + 67 + -3.333333333x + x2 = 0 + 67

Combine like terms: -67 + 67 = 0
0 + -3.333333333x + x2 = 0 + 67
-3.333333333x + x2 = 0 + 67

Combine like terms: 0 + 67 = 67
-3.333333333x + x2 = 67

The x term is -3.333333333x.  Take half its coefficient (-1.666666667).
Square it (2.777777779) and add it to both sides.

Add '2.777777779' to each side of the equation.
-3.333333333x + 2.777777779 + x2 = 67 + 2.777777779

Reorder the terms:
2.777777779 + -3.333333333x + x2 = 67 + 2.777777779

Combine like terms: 67 + 2.777777779 = 69.777777779
2.777777779 + -3.333333333x + x2 = 69.777777779

Factor a perfect square on the left side:
(x + -1.666666667)(x + -1.666666667) = 69.777777779

Calculate the square root of the right side: 8.353309391

Break this problem into two subproblems by setting 
(x + -1.666666667) equal to 8.353309391 and -8.353309391.


Subproblem 1
x + -1.666666667 = 8.353309391

Simplifying
x + -1.666666667 = 8.353309391

Reorder the terms:
-1.666666667 + x = 8.353309391

Solving
-1.666666667 + x = 8.353309391

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '1.666666667' to each side of the equation.
-1.666666667 + 1.666666667 + x = 8.353309391 + 1.666666667

Combine like terms: -1.666666667 + 1.666666667 = 0.000000000
0.000000000 + x = 8.353309391 + 1.666666667
x = 8.353309391 + 1.666666667

Combine like terms: 8.353309391 + 1.666666667 = 10.019976058
x = 10.019976058

Simplifying
x = 10.019976058


Subproblem 2
x + -1.666666667 = -8.353309391

Simplifying
x + -1.666666667 = -8.353309391

Reorder the terms:
-1.666666667 + x = -8.353309391

Solving
-1.666666667 + x = -8.353309391

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '1.666666667' to each side of the equation.
-1.666666667 + 1.666666667 + x = -8.353309391 + 1.666666667

Combine like terms: -1.666666667 + 1.666666667 = 0.000000000
0.000000000 + x = -8.353309391 + 1.666666667
x = -8.353309391 + 1.666666667

Combine like terms: -8.353309391 + 1.666666667 = -6.686642724
x = -6.686642724

Simplifying
x = -6.686642724


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {10.019976058, -6.686642724}

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