16x^2+220x-41=0

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Solution for 16x^2+220x-41=0 equation:


Simplifying
16x2 + 220x + -41 = 0

Reorder the terms:
-41 + 220x + 16x2 = 0

Solving
-41 + 220x + 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'.
-2.5625 + 13.75x + x2 = 0

Move the constant term to the right:

Add '2.5625' to each side of the equation.
-2.5625 + 13.75x + 2.5625 + x2 = 0 + 2.5625

Reorder the terms:
-2.5625 + 2.5625 + 13.75x + x2 = 0 + 2.5625

Combine like terms: -2.5625 + 2.5625 = 0.0000
0.0000 + 13.75x + x2 = 0 + 2.5625
13.75x + x2 = 0 + 2.5625

Combine like terms: 0 + 2.5625 = 2.5625
13.75x + x2 = 2.5625

The x term is 13.75x.  Take half its coefficient (6.875).
Square it (47.265625) and add it to both sides.

Add '47.265625' to each side of the equation.
13.75x + 47.265625 + x2 = 2.5625 + 47.265625

Reorder the terms:
47.265625 + 13.75x + x2 = 2.5625 + 47.265625

Combine like terms: 2.5625 + 47.265625 = 49.828125
47.265625 + 13.75x + x2 = 49.828125

Factor a perfect square on the left side:
(x + 6.875)(x + 6.875) = 49.828125

Calculate the square root of the right side: 7.058903952

Break this problem into two subproblems by setting 
(x + 6.875) equal to 7.058903952 and -7.058903952.

Subproblem 1

x + 6.875 = 7.058903952 Simplifying x + 6.875 = 7.058903952 Reorder the terms: 6.875 + x = 7.058903952 Solving 6.875 + x = 7.058903952 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6.875' to each side of the equation. 6.875 + -6.875 + x = 7.058903952 + -6.875 Combine like terms: 6.875 + -6.875 = 0.000 0.000 + x = 7.058903952 + -6.875 x = 7.058903952 + -6.875 Combine like terms: 7.058903952 + -6.875 = 0.183903952 x = 0.183903952 Simplifying x = 0.183903952

Subproblem 2

x + 6.875 = -7.058903952 Simplifying x + 6.875 = -7.058903952 Reorder the terms: 6.875 + x = -7.058903952 Solving 6.875 + x = -7.058903952 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6.875' to each side of the equation. 6.875 + -6.875 + x = -7.058903952 + -6.875 Combine like terms: 6.875 + -6.875 = 0.000 0.000 + x = -7.058903952 + -6.875 x = -7.058903952 + -6.875 Combine like terms: -7.058903952 + -6.875 = -13.933903952 x = -13.933903952 Simplifying x = -13.933903952

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.183903952, -13.933903952}

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