16x^2-75x-116=

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Solution for 16x^2-75x-116= equation:


Simplifying
16x2 + -75x + -116 = 0

Reorder the terms:
-116 + -75x + 16x2 = 0

Solving
-116 + -75x + 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'.
-7.25 + -4.6875x + x2 = 0

Move the constant term to the right:

Add '7.25' to each side of the equation.
-7.25 + -4.6875x + 7.25 + x2 = 0 + 7.25

Reorder the terms:
-7.25 + 7.25 + -4.6875x + x2 = 0 + 7.25

Combine like terms: -7.25 + 7.25 = 0.00
0.00 + -4.6875x + x2 = 0 + 7.25
-4.6875x + x2 = 0 + 7.25

Combine like terms: 0 + 7.25 = 7.25
-4.6875x + x2 = 7.25

The x term is -4.6875x.  Take half its coefficient (-2.34375).
Square it (5.493164063) and add it to both sides.

Add '5.493164063' to each side of the equation.
-4.6875x + 5.493164063 + x2 = 7.25 + 5.493164063

Reorder the terms:
5.493164063 + -4.6875x + x2 = 7.25 + 5.493164063

Combine like terms: 7.25 + 5.493164063 = 12.743164063
5.493164063 + -4.6875x + x2 = 12.743164063

Factor a perfect square on the left side:
(x + -2.34375)(x + -2.34375) = 12.743164063

Calculate the square root of the right side: 3.569756863

Break this problem into two subproblems by setting 
(x + -2.34375) equal to 3.569756863 and -3.569756863.

Subproblem 1

x + -2.34375 = 3.569756863 Simplifying x + -2.34375 = 3.569756863 Reorder the terms: -2.34375 + x = 3.569756863 Solving -2.34375 + x = 3.569756863 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.34375' to each side of the equation. -2.34375 + 2.34375 + x = 3.569756863 + 2.34375 Combine like terms: -2.34375 + 2.34375 = 0.00000 0.00000 + x = 3.569756863 + 2.34375 x = 3.569756863 + 2.34375 Combine like terms: 3.569756863 + 2.34375 = 5.913506863 x = 5.913506863 Simplifying x = 5.913506863

Subproblem 2

x + -2.34375 = -3.569756863 Simplifying x + -2.34375 = -3.569756863 Reorder the terms: -2.34375 + x = -3.569756863 Solving -2.34375 + x = -3.569756863 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.34375' to each side of the equation. -2.34375 + 2.34375 + x = -3.569756863 + 2.34375 Combine like terms: -2.34375 + 2.34375 = 0.00000 0.00000 + x = -3.569756863 + 2.34375 x = -3.569756863 + 2.34375 Combine like terms: -3.569756863 + 2.34375 = -1.226006863 x = -1.226006863 Simplifying x = -1.226006863

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.913506863, -1.226006863}

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