x^2-4.875x-.375=0

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Solution for x^2-4.875x-.375=0 equation:


Simplifying
x2 + -4.875x + -0.375 = 0

Reorder the terms:
-0.375 + -4.875x + x2 = 0

Solving
-0.375 + -4.875x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '0.375' to each side of the equation.
-0.375 + -4.875x + 0.375 + x2 = 0 + 0.375

Reorder the terms:
-0.375 + 0.375 + -4.875x + x2 = 0 + 0.375

Combine like terms: -0.375 + 0.375 = 0.000
0.000 + -4.875x + x2 = 0 + 0.375
-4.875x + x2 = 0 + 0.375

Combine like terms: 0 + 0.375 = 0.375
-4.875x + x2 = 0.375

The x term is -4.875x.  Take half its coefficient (-2.4375).
Square it (5.94140625) and add it to both sides.

Add '5.94140625' to each side of the equation.
-4.875x + 5.94140625 + x2 = 0.375 + 5.94140625

Reorder the terms:
5.94140625 + -4.875x + x2 = 0.375 + 5.94140625

Combine like terms: 0.375 + 5.94140625 = 6.31640625
5.94140625 + -4.875x + x2 = 6.31640625

Factor a perfect square on the left side:
(x + -2.4375)(x + -2.4375) = 6.31640625

Calculate the square root of the right side: 2.513246158

Break this problem into two subproblems by setting 
(x + -2.4375) equal to 2.513246158 and -2.513246158.

Subproblem 1

x + -2.4375 = 2.513246158 Simplifying x + -2.4375 = 2.513246158 Reorder the terms: -2.4375 + x = 2.513246158 Solving -2.4375 + x = 2.513246158 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.4375' to each side of the equation. -2.4375 + 2.4375 + x = 2.513246158 + 2.4375 Combine like terms: -2.4375 + 2.4375 = 0.0000 0.0000 + x = 2.513246158 + 2.4375 x = 2.513246158 + 2.4375 Combine like terms: 2.513246158 + 2.4375 = 4.950746158 x = 4.950746158 Simplifying x = 4.950746158

Subproblem 2

x + -2.4375 = -2.513246158 Simplifying x + -2.4375 = -2.513246158 Reorder the terms: -2.4375 + x = -2.513246158 Solving -2.4375 + x = -2.513246158 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.4375' to each side of the equation. -2.4375 + 2.4375 + x = -2.513246158 + 2.4375 Combine like terms: -2.4375 + 2.4375 = 0.0000 0.0000 + x = -2.513246158 + 2.4375 x = -2.513246158 + 2.4375 Combine like terms: -2.513246158 + 2.4375 = -0.075746158 x = -0.075746158 Simplifying x = -0.075746158

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.950746158, -0.075746158}

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