SOLUTION: Don't know how to this equation.. can someone help me?
Solve the following equation for n
nC2 - 5{P(1/3n, 2)} + 1/3n = 9
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-> SOLUTION: Don't know how to this equation.. can someone help me?
Solve the following equation for n
nC2 - 5{P(1/3n, 2)} + 1/3n = 9
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Question 1042916: Don't know how to this equation.. can someone help me?
Solve the following equation for n
nC2 - 5{P(1/3n, 2)} + 1/3n = 9 Found 2 solutions by ikleyn, MathTherapy:Answer by ikleyn(52780) (Show Source):
You can put this solution on YOUR website! .
Don't know how to this equation.. can someone help me?
Solve the following equation for n
nC2 - 5{P(1/3n, 2)} + 1/3n = 9
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n = 9.
----------------- Comment from student: Thanks a lot ikleyn!! Can you give me the steps on how you found nine please. So that I can understand better.
-----------------
It is clear that must be integer positive.
Therefore, let us introduce new variable m = .
Then n = 3m, and the equation takes the form
(3m)C2 - 5P(m,2) + m = 9.
Or - 5*m*(m-1) + m = 9.
This is a quadratic equation, and you can solve it.
You can put this solution on YOUR website!
Don't know how to this equation.. can someone help me?
Solve the following equation for n
nC2 - 5{P(1/3n, 2)} + 1/3n = 9
The following quadratic ensues: , which means that:
