16x^2+24x-5=0

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Solution for 16x^2+24x-5=0 equation:


Simplifying
16x2 + 24x + -5 = 0

Reorder the terms:
-5 + 24x + 16x2 = 0

Solving
-5 + 24x + 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 + 1.5x + x2 = 0

Move the constant term to the right:

Add '0.3125' to each side of the equation.
-0.3125 + 1.5x + 0.3125 + x2 = 0 + 0.3125

Reorder the terms:
-0.3125 + 0.3125 + 1.5x + x2 = 0 + 0.3125

Combine like terms: -0.3125 + 0.3125 = 0.0000
0.0000 + 1.5x + x2 = 0 + 0.3125
1.5x + x2 = 0 + 0.3125

Combine like terms: 0 + 0.3125 = 0.3125
1.5x + x2 = 0.3125

The x term is 1.5x.  Take half its coefficient (0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
1.5x + 0.5625 + x2 = 0.3125 + 0.5625

Reorder the terms:
0.5625 + 1.5x + x2 = 0.3125 + 0.5625

Combine like terms: 0.3125 + 0.5625 = 0.875
0.5625 + 1.5x + x2 = 0.875

Factor a perfect square on the left side:
(x + 0.75)(x + 0.75) = 0.875

Calculate the square root of the right side: 0.935414347

Break this problem into two subproblems by setting 
(x + 0.75) equal to 0.935414347 and -0.935414347.

Subproblem 1

x + 0.75 = 0.935414347 Simplifying x + 0.75 = 0.935414347 Reorder the terms: 0.75 + x = 0.935414347 Solving 0.75 + x = 0.935414347 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = 0.935414347 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = 0.935414347 + -0.75 x = 0.935414347 + -0.75 Combine like terms: 0.935414347 + -0.75 = 0.185414347 x = 0.185414347 Simplifying x = 0.185414347

Subproblem 2

x + 0.75 = -0.935414347 Simplifying x + 0.75 = -0.935414347 Reorder the terms: 0.75 + x = -0.935414347 Solving 0.75 + x = -0.935414347 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = -0.935414347 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = -0.935414347 + -0.75 x = -0.935414347 + -0.75 Combine like terms: -0.935414347 + -0.75 = -1.685414347 x = -1.685414347 Simplifying x = -1.685414347

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.185414347, -1.685414347}

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