-.33x^2+31.6x+2398.33=0

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Solution for -.33x^2+31.6x+2398.33=0 equation:


Simplifying
-0.33x2 + 31.6x + 2398.33 = 0

Reorder the terms:
2398.33 + 31.6x + -0.33x2 = 0

Solving
2398.33 + 31.6x + -0.33x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-0.33 the coefficient of the squared term: 

Divide each side by '-0.33'.
-7267.666667 + -95.75757576x + x2 = 0

Move the constant term to the right:

Add '7267.666667' to each side of the equation.
-7267.666667 + -95.75757576x + 7267.666667 + x2 = 0 + 7267.666667

Reorder the terms:
-7267.666667 + 7267.666667 + -95.75757576x + x2 = 0 + 7267.666667

Combine like terms: -7267.666667 + 7267.666667 = 0.000000
0.000000 + -95.75757576x + x2 = 0 + 7267.666667
-95.75757576x + x2 = 0 + 7267.666667

Combine like terms: 0 + 7267.666667 = 7267.666667
-95.75757576x + x2 = 7267.666667

The x term is -95.75757576x.  Take half its coefficient (-47.87878788).
Square it (2292.378329) and add it to both sides.

Add '2292.378329' to each side of the equation.
-95.75757576x + 2292.378329 + x2 = 7267.666667 + 2292.378329

Reorder the terms:
2292.378329 + -95.75757576x + x2 = 7267.666667 + 2292.378329

Combine like terms: 7267.666667 + 2292.378329 = 9560.044996
2292.378329 + -95.75757576x + x2 = 9560.044996

Factor a perfect square on the left side:
(x + -47.87878788)(x + -47.87878788) = 9560.044996

Calculate the square root of the right side: 97.775482591

Break this problem into two subproblems by setting 
(x + -47.87878788) equal to 97.775482591 and -97.775482591.

Subproblem 1

x + -47.87878788 = 97.775482591 Simplifying x + -47.87878788 = 97.775482591 Reorder the terms: -47.87878788 + x = 97.775482591 Solving -47.87878788 + x = 97.775482591 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '47.87878788' to each side of the equation. -47.87878788 + 47.87878788 + x = 97.775482591 + 47.87878788 Combine like terms: -47.87878788 + 47.87878788 = 0.00000000 0.00000000 + x = 97.775482591 + 47.87878788 x = 97.775482591 + 47.87878788 Combine like terms: 97.775482591 + 47.87878788 = 145.654270471 x = 145.654270471 Simplifying x = 145.654270471

Subproblem 2

x + -47.87878788 = -97.775482591 Simplifying x + -47.87878788 = -97.775482591 Reorder the terms: -47.87878788 + x = -97.775482591 Solving -47.87878788 + x = -97.775482591 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '47.87878788' to each side of the equation. -47.87878788 + 47.87878788 + x = -97.775482591 + 47.87878788 Combine like terms: -47.87878788 + 47.87878788 = 0.00000000 0.00000000 + x = -97.775482591 + 47.87878788 x = -97.775482591 + 47.87878788 Combine like terms: -97.775482591 + 47.87878788 = -49.896694711 x = -49.896694711 Simplifying x = -49.896694711

Solution

The solution to the problem is based on the solutions from the subproblems. x = {145.654270471, -49.896694711}

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