22r^2-43r-44=

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Solution for 22r^2-43r-44= equation:


Simplifying
22r2 + -43r + -44 = 0

Reorder the terms:
-44 + -43r + 22r2 = 0

Solving
-44 + -43r + 22r2 = 0

Solving for variable 'r'.

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

Divide each side by '22'.
-2 + -1.954545455r + r2 = 0

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + -1.954545455r + 2 + r2 = 0 + 2

Reorder the terms:
-2 + 2 + -1.954545455r + r2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -1.954545455r + r2 = 0 + 2
-1.954545455r + r2 = 0 + 2

Combine like terms: 0 + 2 = 2
-1.954545455r + r2 = 2

The r term is -1.954545455r.  Take half its coefficient (-0.9772727275).
Square it (0.9550619839) and add it to both sides.

Add '0.9550619839' to each side of the equation.
-1.954545455r + 0.9550619839 + r2 = 2 + 0.9550619839

Reorder the terms:
0.9550619839 + -1.954545455r + r2 = 2 + 0.9550619839

Combine like terms: 2 + 0.9550619839 = 2.9550619839
0.9550619839 + -1.954545455r + r2 = 2.9550619839

Factor a perfect square on the left side:
(r + -0.9772727275)(r + -0.9772727275) = 2.9550619839

Calculate the square root of the right side: 1.719029373

Break this problem into two subproblems by setting 
(r + -0.9772727275) equal to 1.719029373 and -1.719029373.

Subproblem 1

r + -0.9772727275 = 1.719029373 Simplifying r + -0.9772727275 = 1.719029373 Reorder the terms: -0.9772727275 + r = 1.719029373 Solving -0.9772727275 + r = 1.719029373 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '0.9772727275' to each side of the equation. -0.9772727275 + 0.9772727275 + r = 1.719029373 + 0.9772727275 Combine like terms: -0.9772727275 + 0.9772727275 = 0.0000000000 0.0000000000 + r = 1.719029373 + 0.9772727275 r = 1.719029373 + 0.9772727275 Combine like terms: 1.719029373 + 0.9772727275 = 2.6963021005 r = 2.6963021005 Simplifying r = 2.6963021005

Subproblem 2

r + -0.9772727275 = -1.719029373 Simplifying r + -0.9772727275 = -1.719029373 Reorder the terms: -0.9772727275 + r = -1.719029373 Solving -0.9772727275 + r = -1.719029373 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '0.9772727275' to each side of the equation. -0.9772727275 + 0.9772727275 + r = -1.719029373 + 0.9772727275 Combine like terms: -0.9772727275 + 0.9772727275 = 0.0000000000 0.0000000000 + r = -1.719029373 + 0.9772727275 r = -1.719029373 + 0.9772727275 Combine like terms: -1.719029373 + 0.9772727275 = -0.7417566455 r = -0.7417566455 Simplifying r = -0.7417566455

Solution

The solution to the problem is based on the solutions from the subproblems. r = {2.6963021005, -0.7417566455}

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