64x^2+48x-1=0

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Solution for 64x^2+48x-1=0 equation:


Simplifying
64x2 + 48x + -1 = 0

Reorder the terms:
-1 + 48x + 64x2 = 0

Solving
-1 + 48x + 64x2 = 0

Solving for variable 'x'.

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

Divide each side by '64'.
-0.015625 + 0.75x + x2 = 0

Move the constant term to the right:

Add '0.015625' to each side of the equation.
-0.015625 + 0.75x + 0.015625 + x2 = 0 + 0.015625

Reorder the terms:
-0.015625 + 0.015625 + 0.75x + x2 = 0 + 0.015625

Combine like terms: -0.015625 + 0.015625 = 0.000000
0.000000 + 0.75x + x2 = 0 + 0.015625
0.75x + x2 = 0 + 0.015625

Combine like terms: 0 + 0.015625 = 0.015625
0.75x + x2 = 0.015625

The x term is 0.75x.  Take half its coefficient (0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
0.75x + 0.140625 + x2 = 0.015625 + 0.140625

Reorder the terms:
0.140625 + 0.75x + x2 = 0.015625 + 0.140625

Combine like terms: 0.015625 + 0.140625 = 0.15625
0.140625 + 0.75x + x2 = 0.15625

Factor a perfect square on the left side:
(x + 0.375)(x + 0.375) = 0.15625

Calculate the square root of the right side: 0.395284708

Break this problem into two subproblems by setting 
(x + 0.375) equal to 0.395284708 and -0.395284708.

Subproblem 1

x + 0.375 = 0.395284708 Simplifying x + 0.375 = 0.395284708 Reorder the terms: 0.375 + x = 0.395284708 Solving 0.375 + x = 0.395284708 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + x = 0.395284708 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + x = 0.395284708 + -0.375 x = 0.395284708 + -0.375 Combine like terms: 0.395284708 + -0.375 = 0.020284708 x = 0.020284708 Simplifying x = 0.020284708

Subproblem 2

x + 0.375 = -0.395284708 Simplifying x + 0.375 = -0.395284708 Reorder the terms: 0.375 + x = -0.395284708 Solving 0.375 + x = -0.395284708 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + x = -0.395284708 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + x = -0.395284708 + -0.375 x = -0.395284708 + -0.375 Combine like terms: -0.395284708 + -0.375 = -0.770284708 x = -0.770284708 Simplifying x = -0.770284708

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.020284708, -0.770284708}

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