-16x^2+73x+5=0

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Solution for -16x^2+73x+5=0 equation:


Simplifying
-16x2 + 73x + 5 = 0

Reorder the terms:
5 + 73x + -16x2 = 0

Solving
5 + 73x + -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'.
-0.3125 + -4.5625x + x2 = 0

Move the constant term to the right:

Add '0.3125' to each side of the equation.
-0.3125 + -4.5625x + 0.3125 + x2 = 0 + 0.3125

Reorder the terms:
-0.3125 + 0.3125 + -4.5625x + x2 = 0 + 0.3125

Combine like terms: -0.3125 + 0.3125 = 0.0000
0.0000 + -4.5625x + x2 = 0 + 0.3125
-4.5625x + x2 = 0 + 0.3125

Combine like terms: 0 + 0.3125 = 0.3125
-4.5625x + x2 = 0.3125

The x term is -4.5625x.  Take half its coefficient (-2.28125).
Square it (5.204101563) and add it to both sides.

Add '5.204101563' to each side of the equation.
-4.5625x + 5.204101563 + x2 = 0.3125 + 5.204101563

Reorder the terms:
5.204101563 + -4.5625x + x2 = 0.3125 + 5.204101563

Combine like terms: 0.3125 + 5.204101563 = 5.516601563
5.204101563 + -4.5625x + x2 = 5.516601563

Factor a perfect square on the left side:
(x + -2.28125)(x + -2.28125) = 5.516601563

Calculate the square root of the right side: 2.348744678

Break this problem into two subproblems by setting 
(x + -2.28125) equal to 2.348744678 and -2.348744678.

Subproblem 1

x + -2.28125 = 2.348744678 Simplifying x + -2.28125 = 2.348744678 Reorder the terms: -2.28125 + x = 2.348744678 Solving -2.28125 + x = 2.348744678 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.28125' to each side of the equation. -2.28125 + 2.28125 + x = 2.348744678 + 2.28125 Combine like terms: -2.28125 + 2.28125 = 0.00000 0.00000 + x = 2.348744678 + 2.28125 x = 2.348744678 + 2.28125 Combine like terms: 2.348744678 + 2.28125 = 4.629994678 x = 4.629994678 Simplifying x = 4.629994678

Subproblem 2

x + -2.28125 = -2.348744678 Simplifying x + -2.28125 = -2.348744678 Reorder the terms: -2.28125 + x = -2.348744678 Solving -2.28125 + x = -2.348744678 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.28125' to each side of the equation. -2.28125 + 2.28125 + x = -2.348744678 + 2.28125 Combine like terms: -2.28125 + 2.28125 = 0.00000 0.00000 + x = -2.348744678 + 2.28125 x = -2.348744678 + 2.28125 Combine like terms: -2.348744678 + 2.28125 = -0.067494678 x = -0.067494678 Simplifying x = -0.067494678

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.629994678, -0.067494678}

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