4x^2-33x-9=

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Solution for 4x^2-33x-9= equation:


Simplifying
4x2 + -33x + -9 = 0

Reorder the terms:
-9 + -33x + 4x2 = 0

Solving
-9 + -33x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
-2.25 + -8.25x + x2 = 0

Move the constant term to the right:

Add '2.25' to each side of the equation.
-2.25 + -8.25x + 2.25 + x2 = 0 + 2.25

Reorder the terms:
-2.25 + 2.25 + -8.25x + x2 = 0 + 2.25

Combine like terms: -2.25 + 2.25 = 0.00
0.00 + -8.25x + x2 = 0 + 2.25
-8.25x + x2 = 0 + 2.25

Combine like terms: 0 + 2.25 = 2.25
-8.25x + x2 = 2.25

The x term is -8.25x.  Take half its coefficient (-4.125).
Square it (17.015625) and add it to both sides.

Add '17.015625' to each side of the equation.
-8.25x + 17.015625 + x2 = 2.25 + 17.015625

Reorder the terms:
17.015625 + -8.25x + x2 = 2.25 + 17.015625

Combine like terms: 2.25 + 17.015625 = 19.265625
17.015625 + -8.25x + x2 = 19.265625

Factor a perfect square on the left side:
(x + -4.125)(x + -4.125) = 19.265625

Calculate the square root of the right side: 4.389262467

Break this problem into two subproblems by setting 
(x + -4.125) equal to 4.389262467 and -4.389262467.

Subproblem 1

x + -4.125 = 4.389262467 Simplifying x + -4.125 = 4.389262467 Reorder the terms: -4.125 + x = 4.389262467 Solving -4.125 + x = 4.389262467 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.125' to each side of the equation. -4.125 + 4.125 + x = 4.389262467 + 4.125 Combine like terms: -4.125 + 4.125 = 0.000 0.000 + x = 4.389262467 + 4.125 x = 4.389262467 + 4.125 Combine like terms: 4.389262467 + 4.125 = 8.514262467 x = 8.514262467 Simplifying x = 8.514262467

Subproblem 2

x + -4.125 = -4.389262467 Simplifying x + -4.125 = -4.389262467 Reorder the terms: -4.125 + x = -4.389262467 Solving -4.125 + x = -4.389262467 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.125' to each side of the equation. -4.125 + 4.125 + x = -4.389262467 + 4.125 Combine like terms: -4.125 + 4.125 = 0.000 0.000 + x = -4.389262467 + 4.125 x = -4.389262467 + 4.125 Combine like terms: -4.389262467 + 4.125 = -0.264262467 x = -0.264262467 Simplifying x = -0.264262467

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.514262467, -0.264262467}

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