44798.2544=6.28r^2+1813.664r

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Solution for 44798.2544=6.28r^2+1813.664r equation:


Simplifying
44798.2544 = 6.28r2 + 1813.664r

Reorder the terms:
44798.2544 = 1813.664r + 6.28r2

Solving
44798.2544 = 1813.664r + 6.28r2

Solving for variable 'r'.

Reorder the terms:
44798.2544 + -1813.664r + -6.28r2 = 1813.664r + -1813.664r + 6.28r2 + -6.28r2

Combine like terms: 1813.664r + -1813.664r = 0.000
44798.2544 + -1813.664r + -6.28r2 = 0.000 + 6.28r2 + -6.28r2
44798.2544 + -1813.664r + -6.28r2 = 6.28r2 + -6.28r2

Combine like terms: 6.28r2 + -6.28r2 = 0.00
44798.2544 + -1813.664r + -6.28r2 = 0.00

Begin completing the square.  Divide all terms by
-6.28 the coefficient of the squared term: 

Divide each side by '-6.28'.
-7133.48 + 288.8r + r2 = 0

Move the constant term to the right:

Add '7133.48' to each side of the equation.
-7133.48 + 288.8r + 7133.48 + r2 = 0 + 7133.48

Reorder the terms:
-7133.48 + 7133.48 + 288.8r + r2 = 0 + 7133.48

Combine like terms: -7133.48 + 7133.48 = 0.00
0.00 + 288.8r + r2 = 0 + 7133.48
288.8r + r2 = 0 + 7133.48

Combine like terms: 0 + 7133.48 = 7133.48
288.8r + r2 = 7133.48

The r term is 288.8r.  Take half its coefficient (144.4).
Square it (20851.36) and add it to both sides.

Add '20851.36' to each side of the equation.
288.8r + 20851.36 + r2 = 7133.48 + 20851.36

Reorder the terms:
20851.36 + 288.8r + r2 = 7133.48 + 20851.36

Combine like terms: 7133.48 + 20851.36 = 27984.84
20851.36 + 288.8r + r2 = 27984.84

Factor a perfect square on the left side:
(r + 144.4)(r + 144.4) = 27984.84

Calculate the square root of the right side: 167.286700009

Break this problem into two subproblems by setting 
(r + 144.4) equal to 167.286700009 and -167.286700009.

Subproblem 1

r + 144.4 = 167.286700009 Simplifying r + 144.4 = 167.286700009 Reorder the terms: 144.4 + r = 167.286700009 Solving 144.4 + r = 167.286700009 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-144.4' to each side of the equation. 144.4 + -144.4 + r = 167.286700009 + -144.4 Combine like terms: 144.4 + -144.4 = 0.0 0.0 + r = 167.286700009 + -144.4 r = 167.286700009 + -144.4 Combine like terms: 167.286700009 + -144.4 = 22.886700009 r = 22.886700009 Simplifying r = 22.886700009

Subproblem 2

r + 144.4 = -167.286700009 Simplifying r + 144.4 = -167.286700009 Reorder the terms: 144.4 + r = -167.286700009 Solving 144.4 + r = -167.286700009 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-144.4' to each side of the equation. 144.4 + -144.4 + r = -167.286700009 + -144.4 Combine like terms: 144.4 + -144.4 = 0.0 0.0 + r = -167.286700009 + -144.4 r = -167.286700009 + -144.4 Combine like terms: -167.286700009 + -144.4 = -311.686700009 r = -311.686700009 Simplifying r = -311.686700009

Solution

The solution to the problem is based on the solutions from the subproblems. r = {22.886700009, -311.686700009}

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