8x*8x+3x=5

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Solution for 8x*8x+3x=5 equation:


Simplifying
8x * 8x + 3x = 5

Reorder the terms for easier multiplication:
8 * 8x * x + 3x = 5

Multiply 8 * 8
64x * x + 3x = 5

Multiply x * x
64x2 + 3x = 5

Reorder the terms:
3x + 64x2 = 5

Solving
3x + 64x2 = 5

Solving for variable 'x'.

Reorder the terms:
-5 + 3x + 64x2 = 5 + -5

Combine like terms: 5 + -5 = 0
-5 + 3x + 64x2 = 0

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

Divide each side by '64'.
-0.078125 + 0.046875x + x2 = 0

Move the constant term to the right:

Add '0.078125' to each side of the equation.
-0.078125 + 0.046875x + 0.078125 + x2 = 0 + 0.078125

Reorder the terms:
-0.078125 + 0.078125 + 0.046875x + x2 = 0 + 0.078125

Combine like terms: -0.078125 + 0.078125 = 0.000000
0.000000 + 0.046875x + x2 = 0 + 0.078125
0.046875x + x2 = 0 + 0.078125

Combine like terms: 0 + 0.078125 = 0.078125
0.046875x + x2 = 0.078125

The x term is 0.046875x.  Take half its coefficient (0.0234375).
Square it (0.0005493164063) and add it to both sides.

Add '0.0005493164063' to each side of the equation.
0.046875x + 0.0005493164063 + x2 = 0.078125 + 0.0005493164063

Reorder the terms:
0.0005493164063 + 0.046875x + x2 = 0.078125 + 0.0005493164063

Combine like terms: 0.078125 + 0.0005493164063 = 0.0786743164063
0.0005493164063 + 0.046875x + x2 = 0.0786743164063

Factor a perfect square on the left side:
(x + 0.0234375)(x + 0.0234375) = 0.0786743164063

Calculate the square root of the right side: 0.280489423

Break this problem into two subproblems by setting 
(x + 0.0234375) equal to 0.280489423 and -0.280489423.

Subproblem 1

x + 0.0234375 = 0.280489423 Simplifying x + 0.0234375 = 0.280489423 Reorder the terms: 0.0234375 + x = 0.280489423 Solving 0.0234375 + x = 0.280489423 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0234375' to each side of the equation. 0.0234375 + -0.0234375 + x = 0.280489423 + -0.0234375 Combine like terms: 0.0234375 + -0.0234375 = 0.0000000 0.0000000 + x = 0.280489423 + -0.0234375 x = 0.280489423 + -0.0234375 Combine like terms: 0.280489423 + -0.0234375 = 0.257051923 x = 0.257051923 Simplifying x = 0.257051923

Subproblem 2

x + 0.0234375 = -0.280489423 Simplifying x + 0.0234375 = -0.280489423 Reorder the terms: 0.0234375 + x = -0.280489423 Solving 0.0234375 + x = -0.280489423 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0234375' to each side of the equation. 0.0234375 + -0.0234375 + x = -0.280489423 + -0.0234375 Combine like terms: 0.0234375 + -0.0234375 = 0.0000000 0.0000000 + x = -0.280489423 + -0.0234375 x = -0.280489423 + -0.0234375 Combine like terms: -0.280489423 + -0.0234375 = -0.303926923 x = -0.303926923 Simplifying x = -0.303926923

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.257051923, -0.303926923}

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