4x^2-33x-63=0

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Solution for 4x^2-33x-63=0 equation:


Simplifying
4x2 + -33x + -63 = 0

Reorder the terms:
-63 + -33x + 4x2 = 0

Solving
-63 + -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'.
-15.75 + -8.25x + x2 = 0

Move the constant term to the right:

Add '15.75' to each side of the equation.
-15.75 + -8.25x + 15.75 + x2 = 0 + 15.75

Reorder the terms:
-15.75 + 15.75 + -8.25x + x2 = 0 + 15.75

Combine like terms: -15.75 + 15.75 = 0.00
0.00 + -8.25x + x2 = 0 + 15.75
-8.25x + x2 = 0 + 15.75

Combine like terms: 0 + 15.75 = 15.75
-8.25x + x2 = 15.75

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 = 15.75 + 17.015625

Reorder the terms:
17.015625 + -8.25x + x2 = 15.75 + 17.015625

Combine like terms: 15.75 + 17.015625 = 32.765625
17.015625 + -8.25x + x2 = 32.765625

Factor a perfect square on the left side:
(x + -4.125)(x + -4.125) = 32.765625

Calculate the square root of the right side: 5.724126571

Break this problem into two subproblems by setting 
(x + -4.125) equal to 5.724126571 and -5.724126571.

Subproblem 1

x + -4.125 = 5.724126571 Simplifying x + -4.125 = 5.724126571 Reorder the terms: -4.125 + x = 5.724126571 Solving -4.125 + x = 5.724126571 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 = 5.724126571 + 4.125 Combine like terms: -4.125 + 4.125 = 0.000 0.000 + x = 5.724126571 + 4.125 x = 5.724126571 + 4.125 Combine like terms: 5.724126571 + 4.125 = 9.849126571 x = 9.849126571 Simplifying x = 9.849126571

Subproblem 2

x + -4.125 = -5.724126571 Simplifying x + -4.125 = -5.724126571 Reorder the terms: -4.125 + x = -5.724126571 Solving -4.125 + x = -5.724126571 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 = -5.724126571 + 4.125 Combine like terms: -4.125 + 4.125 = 0.000 0.000 + x = -5.724126571 + 4.125 x = -5.724126571 + 4.125 Combine like terms: -5.724126571 + 4.125 = -1.599126571 x = -1.599126571 Simplifying x = -1.599126571

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.849126571, -1.599126571}

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