95x-x^2-20=0

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Solution for 95x-x^2-20=0 equation:


Simplifying
95x + -1x2 + -20 = 0

Reorder the terms:
-20 + 95x + -1x2 = 0

Solving
-20 + 95x + -1x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
20 + -95x + x2 = 0

Move the constant term to the right:

Add '-20' to each side of the equation.
20 + -95x + -20 + x2 = 0 + -20

Reorder the terms:
20 + -20 + -95x + x2 = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -95x + x2 = 0 + -20
-95x + x2 = 0 + -20

Combine like terms: 0 + -20 = -20
-95x + x2 = -20

The x term is -95x.  Take half its coefficient (-47.5).
Square it (2256.25) and add it to both sides.

Add '2256.25' to each side of the equation.
-95x + 2256.25 + x2 = -20 + 2256.25

Reorder the terms:
2256.25 + -95x + x2 = -20 + 2256.25

Combine like terms: -20 + 2256.25 = 2236.25
2256.25 + -95x + x2 = 2236.25

Factor a perfect square on the left side:
(x + -47.5)(x + -47.5) = 2236.25

Calculate the square root of the right side: 47.289005065

Break this problem into two subproblems by setting 
(x + -47.5) equal to 47.289005065 and -47.289005065.

Subproblem 1

x + -47.5 = 47.289005065 Simplifying x + -47.5 = 47.289005065 Reorder the terms: -47.5 + x = 47.289005065 Solving -47.5 + x = 47.289005065 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '47.5' to each side of the equation. -47.5 + 47.5 + x = 47.289005065 + 47.5 Combine like terms: -47.5 + 47.5 = 0.0 0.0 + x = 47.289005065 + 47.5 x = 47.289005065 + 47.5 Combine like terms: 47.289005065 + 47.5 = 94.789005065 x = 94.789005065 Simplifying x = 94.789005065

Subproblem 2

x + -47.5 = -47.289005065 Simplifying x + -47.5 = -47.289005065 Reorder the terms: -47.5 + x = -47.289005065 Solving -47.5 + x = -47.289005065 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '47.5' to each side of the equation. -47.5 + 47.5 + x = -47.289005065 + 47.5 Combine like terms: -47.5 + 47.5 = 0.0 0.0 + x = -47.289005065 + 47.5 x = -47.289005065 + 47.5 Combine like terms: -47.289005065 + 47.5 = 0.210994935 x = 0.210994935 Simplifying x = 0.210994935

Solution

The solution to the problem is based on the solutions from the subproblems. x = {94.789005065, 0.210994935}

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