8x(4x-1)=3

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Solution for 8x(4x-1)=3 equation:


Simplifying
8x(4x + -1) = 3

Reorder the terms:
8x(-1 + 4x) = 3
(-1 * 8x + 4x * 8x) = 3
(-8x + 32x2) = 3

Solving
-8x + 32x2 = 3

Solving for variable 'x'.

Reorder the terms:
-3 + -8x + 32x2 = 3 + -3

Combine like terms: 3 + -3 = 0
-3 + -8x + 32x2 = 0

Begin completing the square.  Divide all terms by
32 the coefficient of the squared term: 

Divide each side by '32'.
-0.09375 + -0.25x + x2 = 0

Move the constant term to the right:

Add '0.09375' to each side of the equation.
-0.09375 + -0.25x + 0.09375 + x2 = 0 + 0.09375

Reorder the terms:
-0.09375 + 0.09375 + -0.25x + x2 = 0 + 0.09375

Combine like terms: -0.09375 + 0.09375 = 0.00000
0.00000 + -0.25x + x2 = 0 + 0.09375
-0.25x + x2 = 0 + 0.09375

Combine like terms: 0 + 0.09375 = 0.09375
-0.25x + x2 = 0.09375

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 = 0.09375 + 0.015625

Reorder the terms:
0.015625 + -0.25x + x2 = 0.09375 + 0.015625

Combine like terms: 0.09375 + 0.015625 = 0.109375
0.015625 + -0.25x + x2 = 0.109375

Factor a perfect square on the left side:
(x + -0.125)(x + -0.125) = 0.109375

Calculate the square root of the right side: 0.330718914

Break this problem into two subproblems by setting 
(x + -0.125) equal to 0.330718914 and -0.330718914.

Subproblem 1

x + -0.125 = 0.330718914 Simplifying x + -0.125 = 0.330718914 Reorder the terms: -0.125 + x = 0.330718914 Solving -0.125 + x = 0.330718914 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 = 0.330718914 + 0.125 Combine like terms: -0.125 + 0.125 = 0.000 0.000 + x = 0.330718914 + 0.125 x = 0.330718914 + 0.125 Combine like terms: 0.330718914 + 0.125 = 0.455718914 x = 0.455718914 Simplifying x = 0.455718914

Subproblem 2

x + -0.125 = -0.330718914 Simplifying x + -0.125 = -0.330718914 Reorder the terms: -0.125 + x = -0.330718914 Solving -0.125 + x = -0.330718914 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 = -0.330718914 + 0.125 Combine like terms: -0.125 + 0.125 = 0.000 0.000 + x = -0.330718914 + 0.125 x = -0.330718914 + 0.125 Combine like terms: -0.330718914 + 0.125 = -0.205718914 x = -0.205718914 Simplifying x = -0.205718914

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.455718914, -0.205718914}

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