16x^2-4x-3=0

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Solution for 16x^2-4x-3=0 equation:


Simplifying
16x2 + -4x + -3 = 0

Reorder the terms:
-3 + -4x + 16x2 = 0

Solving
-3 + -4x + 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'.
-0.1875 + -0.25x + x2 = 0

Move the constant term to the right:

Add '0.1875' to each side of the equation.
-0.1875 + -0.25x + 0.1875 + x2 = 0 + 0.1875

Reorder the terms:
-0.1875 + 0.1875 + -0.25x + x2 = 0 + 0.1875

Combine like terms: -0.1875 + 0.1875 = 0.0000
0.0000 + -0.25x + x2 = 0 + 0.1875
-0.25x + x2 = 0 + 0.1875

Combine like terms: 0 + 0.1875 = 0.1875
-0.25x + x2 = 0.1875

The x term is -0.25x.  Take half its coefficient (-0.125).
Square it (0.015625) and add it to both sides.

Add '0.015625' to each side of the equation.
-0.25x + 0.015625 + x2 = 0.1875 + 0.015625

Reorder the terms:
0.015625 + -0.25x + x2 = 0.1875 + 0.015625

Combine like terms: 0.1875 + 0.015625 = 0.203125
0.015625 + -0.25x + x2 = 0.203125

Factor a perfect square on the left side:
(x + -0.125)(x + -0.125) = 0.203125

Calculate the square root of the right side: 0.450693909

Break this problem into two subproblems by setting 
(x + -0.125) equal to 0.450693909 and -0.450693909.

Subproblem 1

x + -0.125 = 0.450693909 Simplifying x + -0.125 = 0.450693909 Reorder the terms: -0.125 + x = 0.450693909 Solving -0.125 + x = 0.450693909 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.125' to each side of the equation. -0.125 + 0.125 + x = 0.450693909 + 0.125 Combine like terms: -0.125 + 0.125 = 0.000 0.000 + x = 0.450693909 + 0.125 x = 0.450693909 + 0.125 Combine like terms: 0.450693909 + 0.125 = 0.575693909 x = 0.575693909 Simplifying x = 0.575693909

Subproblem 2

x + -0.125 = -0.450693909 Simplifying x + -0.125 = -0.450693909 Reorder the terms: -0.125 + x = -0.450693909 Solving -0.125 + x = -0.450693909 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.125' to each side of the equation. -0.125 + 0.125 + x = -0.450693909 + 0.125 Combine like terms: -0.125 + 0.125 = 0.000 0.000 + x = -0.450693909 + 0.125 x = -0.450693909 + 0.125 Combine like terms: -0.450693909 + 0.125 = -0.325693909 x = -0.325693909 Simplifying x = -0.325693909

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.575693909, -0.325693909}

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