-3x^2+33x-89=0

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Solution for -3x^2+33x-89=0 equation:


Simplifying
-3x2 + 33x + -89 = 0

Reorder the terms:
-89 + 33x + -3x2 = 0

Solving
-89 + 33x + -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'.
29.66666667 + -11x + x2 = 0

Move the constant term to the right:

Add '-29.66666667' to each side of the equation.
29.66666667 + -11x + -29.66666667 + x2 = 0 + -29.66666667

Reorder the terms:
29.66666667 + -29.66666667 + -11x + x2 = 0 + -29.66666667

Combine like terms: 29.66666667 + -29.66666667 = 0.00000000
0.00000000 + -11x + x2 = 0 + -29.66666667
-11x + x2 = 0 + -29.66666667

Combine like terms: 0 + -29.66666667 = -29.66666667
-11x + x2 = -29.66666667

The x term is -11x.  Take half its coefficient (-5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
-11x + 30.25 + x2 = -29.66666667 + 30.25

Reorder the terms:
30.25 + -11x + x2 = -29.66666667 + 30.25

Combine like terms: -29.66666667 + 30.25 = 0.58333333
30.25 + -11x + x2 = 0.58333333

Factor a perfect square on the left side:
(x + -5.5)(x + -5.5) = 0.58333333

Calculate the square root of the right side: 0.763762614

Break this problem into two subproblems by setting 
(x + -5.5) equal to 0.763762614 and -0.763762614.

Subproblem 1

x + -5.5 = 0.763762614 Simplifying x + -5.5 = 0.763762614 Reorder the terms: -5.5 + x = 0.763762614 Solving -5.5 + x = 0.763762614 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = 0.763762614 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = 0.763762614 + 5.5 x = 0.763762614 + 5.5 Combine like terms: 0.763762614 + 5.5 = 6.263762614 x = 6.263762614 Simplifying x = 6.263762614

Subproblem 2

x + -5.5 = -0.763762614 Simplifying x + -5.5 = -0.763762614 Reorder the terms: -5.5 + x = -0.763762614 Solving -5.5 + x = -0.763762614 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = -0.763762614 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = -0.763762614 + 5.5 x = -0.763762614 + 5.5 Combine like terms: -0.763762614 + 5.5 = 4.736237386 x = 4.736237386 Simplifying x = 4.736237386

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.263762614, 4.736237386}

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