16x^2-136x-33=0

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Solution for 16x^2-136x-33=0 equation:


Simplifying
16x2 + -136x + -33 = 0

Reorder the terms:
-33 + -136x + 16x2 = 0

Solving
-33 + -136x + 16x2 = 0

Solving for variable 'x'.

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

Divide each side by '16'.
-2.0625 + -8.5x + x2 = 0

Move the constant term to the right:

Add '2.0625' to each side of the equation.
-2.0625 + -8.5x + 2.0625 + x2 = 0 + 2.0625

Reorder the terms:
-2.0625 + 2.0625 + -8.5x + x2 = 0 + 2.0625

Combine like terms: -2.0625 + 2.0625 = 0.0000
0.0000 + -8.5x + x2 = 0 + 2.0625
-8.5x + x2 = 0 + 2.0625

Combine like terms: 0 + 2.0625 = 2.0625
-8.5x + x2 = 2.0625

The x term is -8.5x.  Take half its coefficient (-4.25).
Square it (18.0625) and add it to both sides.

Add '18.0625' to each side of the equation.
-8.5x + 18.0625 + x2 = 2.0625 + 18.0625

Reorder the terms:
18.0625 + -8.5x + x2 = 2.0625 + 18.0625

Combine like terms: 2.0625 + 18.0625 = 20.125
18.0625 + -8.5x + x2 = 20.125

Factor a perfect square on the left side:
(x + -4.25)(x + -4.25) = 20.125

Calculate the square root of the right side: 4.486089611

Break this problem into two subproblems by setting 
(x + -4.25) equal to 4.486089611 and -4.486089611.

Subproblem 1

x + -4.25 = 4.486089611 Simplifying x + -4.25 = 4.486089611 Reorder the terms: -4.25 + x = 4.486089611 Solving -4.25 + x = 4.486089611 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.25' to each side of the equation. -4.25 + 4.25 + x = 4.486089611 + 4.25 Combine like terms: -4.25 + 4.25 = 0.00 0.00 + x = 4.486089611 + 4.25 x = 4.486089611 + 4.25 Combine like terms: 4.486089611 + 4.25 = 8.736089611 x = 8.736089611 Simplifying x = 8.736089611

Subproblem 2

x + -4.25 = -4.486089611 Simplifying x + -4.25 = -4.486089611 Reorder the terms: -4.25 + x = -4.486089611 Solving -4.25 + x = -4.486089611 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.25' to each side of the equation. -4.25 + 4.25 + x = -4.486089611 + 4.25 Combine like terms: -4.25 + 4.25 = 0.00 0.00 + x = -4.486089611 + 4.25 x = -4.486089611 + 4.25 Combine like terms: -4.486089611 + 4.25 = -0.236089611 x = -0.236089611 Simplifying x = -0.236089611

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.736089611, -0.236089611}

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