-8x^2-6x+575=0

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Solution for -8x^2-6x+575=0 equation:


Simplifying
-8x2 + -6x + 575 = 0

Reorder the terms:
575 + -6x + -8x2 = 0

Solving
575 + -6x + -8x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-8 the coefficient of the squared term: 

Divide each side by '-8'.
-71.875 + 0.75x + x2 = 0

Move the constant term to the right:

Add '71.875' to each side of the equation.
-71.875 + 0.75x + 71.875 + x2 = 0 + 71.875

Reorder the terms:
-71.875 + 71.875 + 0.75x + x2 = 0 + 71.875

Combine like terms: -71.875 + 71.875 = 0.000
0.000 + 0.75x + x2 = 0 + 71.875
0.75x + x2 = 0 + 71.875

Combine like terms: 0 + 71.875 = 71.875
0.75x + x2 = 71.875

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 = 71.875 + 0.140625

Reorder the terms:
0.140625 + 0.75x + x2 = 71.875 + 0.140625

Combine like terms: 71.875 + 0.140625 = 72.015625
0.140625 + 0.75x + x2 = 72.015625

Factor a perfect square on the left side:
(x + 0.375)(x + 0.375) = 72.015625

Calculate the square root of the right side: 8.486202036

Break this problem into two subproblems by setting 
(x + 0.375) equal to 8.486202036 and -8.486202036.

Subproblem 1

x + 0.375 = 8.486202036 Simplifying x + 0.375 = 8.486202036 Reorder the terms: 0.375 + x = 8.486202036 Solving 0.375 + x = 8.486202036 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 = 8.486202036 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + x = 8.486202036 + -0.375 x = 8.486202036 + -0.375 Combine like terms: 8.486202036 + -0.375 = 8.111202036 x = 8.111202036 Simplifying x = 8.111202036

Subproblem 2

x + 0.375 = -8.486202036 Simplifying x + 0.375 = -8.486202036 Reorder the terms: 0.375 + x = -8.486202036 Solving 0.375 + x = -8.486202036 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 = -8.486202036 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + x = -8.486202036 + -0.375 x = -8.486202036 + -0.375 Combine like terms: -8.486202036 + -0.375 = -8.861202036 x = -8.861202036 Simplifying x = -8.861202036

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.111202036, -8.861202036}

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