24x^2+199x-81=0

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Solution for 24x^2+199x-81=0 equation:


Simplifying
24x2 + 199x + -81 = 0

Reorder the terms:
-81 + 199x + 24x2 = 0

Solving
-81 + 199x + 24x2 = 0

Solving for variable 'x'.

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

Divide each side by '24'.
-3.375 + 8.291666667x + x2 = 0

Move the constant term to the right:

Add '3.375' to each side of the equation.
-3.375 + 8.291666667x + 3.375 + x2 = 0 + 3.375

Reorder the terms:
-3.375 + 3.375 + 8.291666667x + x2 = 0 + 3.375

Combine like terms: -3.375 + 3.375 = 0.000
0.000 + 8.291666667x + x2 = 0 + 3.375
8.291666667x + x2 = 0 + 3.375

Combine like terms: 0 + 3.375 = 3.375
8.291666667x + x2 = 3.375

The x term is 8.291666667x.  Take half its coefficient (4.145833334).
Square it (17.18793403) and add it to both sides.

Add '17.18793403' to each side of the equation.
8.291666667x + 17.18793403 + x2 = 3.375 + 17.18793403

Reorder the terms:
17.18793403 + 8.291666667x + x2 = 3.375 + 17.18793403

Combine like terms: 3.375 + 17.18793403 = 20.56293403
17.18793403 + 8.291666667x + x2 = 20.56293403

Factor a perfect square on the left side:
(x + 4.145833334)(x + 4.145833334) = 20.56293403

Calculate the square root of the right side: 4.534637144

Break this problem into two subproblems by setting 
(x + 4.145833334) equal to 4.534637144 and -4.534637144.

Subproblem 1

x + 4.145833334 = 4.534637144 Simplifying x + 4.145833334 = 4.534637144 Reorder the terms: 4.145833334 + x = 4.534637144 Solving 4.145833334 + x = 4.534637144 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.145833334' to each side of the equation. 4.145833334 + -4.145833334 + x = 4.534637144 + -4.145833334 Combine like terms: 4.145833334 + -4.145833334 = 0.000000000 0.000000000 + x = 4.534637144 + -4.145833334 x = 4.534637144 + -4.145833334 Combine like terms: 4.534637144 + -4.145833334 = 0.38880381 x = 0.38880381 Simplifying x = 0.38880381

Subproblem 2

x + 4.145833334 = -4.534637144 Simplifying x + 4.145833334 = -4.534637144 Reorder the terms: 4.145833334 + x = -4.534637144 Solving 4.145833334 + x = -4.534637144 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.145833334' to each side of the equation. 4.145833334 + -4.145833334 + x = -4.534637144 + -4.145833334 Combine like terms: 4.145833334 + -4.145833334 = 0.000000000 0.000000000 + x = -4.534637144 + -4.145833334 x = -4.534637144 + -4.145833334 Combine like terms: -4.534637144 + -4.145833334 = -8.680470478 x = -8.680470478 Simplifying x = -8.680470478

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.38880381, -8.680470478}

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