(x)=-16x^2+500

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Solution for (x)=-16x^2+500 equation:


Simplifying
(x) = -16x2 + 500
x = -16x2 + 500

Reorder the terms:
x = 500 + -16x2

Solving
x = 500 + -16x2

Solving for variable 'x'.

Reorder the terms:
-500 + x + 16x2 = 500 + -16x2 + -500 + 16x2

Reorder the terms:
-500 + x + 16x2 = 500 + -500 + -16x2 + 16x2

Combine like terms: 500 + -500 = 0
-500 + x + 16x2 = 0 + -16x2 + 16x2
-500 + x + 16x2 = -16x2 + 16x2

Combine like terms: -16x2 + 16x2 = 0
-500 + x + 16x2 = 0

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

Divide each side by '16'.
-31.25 + 0.0625x + x2 = 0

Move the constant term to the right:

Add '31.25' to each side of the equation.
-31.25 + 0.0625x + 31.25 + x2 = 0 + 31.25

Reorder the terms:
-31.25 + 31.25 + 0.0625x + x2 = 0 + 31.25

Combine like terms: -31.25 + 31.25 = 0.00
0.00 + 0.0625x + x2 = 0 + 31.25
0.0625x + x2 = 0 + 31.25

Combine like terms: 0 + 31.25 = 31.25
0.0625x + x2 = 31.25

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
0.0625x + 0.25 + x2 = 31.25 + 0.25

Reorder the terms:
0.25 + 0.0625x + x2 = 31.25 + 0.25

Combine like terms: 31.25 + 0.25 = 31.5
0.25 + 0.0625x + x2 = 31.5

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 31.5

Calculate the square root of the right side: 5.61248608

Break this problem into two subproblems by setting 
(x + 0.5) equal to 5.61248608 and -5.61248608.

Subproblem 1

x + 0.5 = 5.61248608 Simplifying x + 0.5 = 5.61248608 Reorder the terms: 0.5 + x = 5.61248608 Solving 0.5 + x = 5.61248608 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 5.61248608 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 5.61248608 + -0.5 x = 5.61248608 + -0.5 Combine like terms: 5.61248608 + -0.5 = 5.11248608 x = 5.11248608 Simplifying x = 5.11248608

Subproblem 2

x + 0.5 = -5.61248608 Simplifying x + 0.5 = -5.61248608 Reorder the terms: 0.5 + x = -5.61248608 Solving 0.5 + x = -5.61248608 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -5.61248608 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -5.61248608 + -0.5 x = -5.61248608 + -0.5 Combine like terms: -5.61248608 + -0.5 = -6.11248608 x = -6.11248608 Simplifying x = -6.11248608

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.11248608, -6.11248608}

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