8x(4x+3)-5x=1

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Solution for 8x(4x+3)-5x=1 equation:


Simplifying
8x(4x + 3) + -5x = 1

Reorder the terms:
8x(3 + 4x) + -5x = 1
(3 * 8x + 4x * 8x) + -5x = 1
(24x + 32x2) + -5x = 1

Reorder the terms:
24x + -5x + 32x2 = 1

Combine like terms: 24x + -5x = 19x
19x + 32x2 = 1

Solving
19x + 32x2 = 1

Solving for variable 'x'.

Reorder the terms:
-1 + 19x + 32x2 = 1 + -1

Combine like terms: 1 + -1 = 0
-1 + 19x + 32x2 = 0

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

Divide each side by '32'.
-0.03125 + 0.59375x + x2 = 0

Move the constant term to the right:

Add '0.03125' to each side of the equation.
-0.03125 + 0.59375x + 0.03125 + x2 = 0 + 0.03125

Reorder the terms:
-0.03125 + 0.03125 + 0.59375x + x2 = 0 + 0.03125

Combine like terms: -0.03125 + 0.03125 = 0.00000
0.00000 + 0.59375x + x2 = 0 + 0.03125
0.59375x + x2 = 0 + 0.03125

Combine like terms: 0 + 0.03125 = 0.03125
0.59375x + x2 = 0.03125

The x term is 0.59375x.  Take half its coefficient (0.296875).
Square it (0.08813476563) and add it to both sides.

Add '0.08813476563' to each side of the equation.
0.59375x + 0.08813476563 + x2 = 0.03125 + 0.08813476563

Reorder the terms:
0.08813476563 + 0.59375x + x2 = 0.03125 + 0.08813476563

Combine like terms: 0.03125 + 0.08813476563 = 0.11938476563
0.08813476563 + 0.59375x + x2 = 0.11938476563

Factor a perfect square on the left side:
(x + 0.296875)(x + 0.296875) = 0.11938476563

Calculate the square root of the right side: 0.345521006

Break this problem into two subproblems by setting 
(x + 0.296875) equal to 0.345521006 and -0.345521006.

Subproblem 1

x + 0.296875 = 0.345521006 Simplifying x + 0.296875 = 0.345521006 Reorder the terms: 0.296875 + x = 0.345521006 Solving 0.296875 + x = 0.345521006 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.296875' to each side of the equation. 0.296875 + -0.296875 + x = 0.345521006 + -0.296875 Combine like terms: 0.296875 + -0.296875 = 0.000000 0.000000 + x = 0.345521006 + -0.296875 x = 0.345521006 + -0.296875 Combine like terms: 0.345521006 + -0.296875 = 0.048646006 x = 0.048646006 Simplifying x = 0.048646006

Subproblem 2

x + 0.296875 = -0.345521006 Simplifying x + 0.296875 = -0.345521006 Reorder the terms: 0.296875 + x = -0.345521006 Solving 0.296875 + x = -0.345521006 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.296875' to each side of the equation. 0.296875 + -0.296875 + x = -0.345521006 + -0.296875 Combine like terms: 0.296875 + -0.296875 = 0.000000 0.000000 + x = -0.345521006 + -0.296875 x = -0.345521006 + -0.296875 Combine like terms: -0.345521006 + -0.296875 = -0.642396006 x = -0.642396006 Simplifying x = -0.642396006

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.048646006, -0.642396006}

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