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Intern
Joined: 07 Aug 2003
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Location: USA
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if m is an integer such that (-2)^2m=2^(9-m) then m=? [#permalink]
 22 Oct 2003, 18:57
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if m is an integer such that (-2)^2m=2^(9-m) then m=?
Answer is 3.
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Manager
Joined: 26 Aug 2003
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(-2)^(2m) = 4^m
and
2^(9-m) = 4^((9-m)/2)
Therefore,
m = (9-m)/2
2m = 9 - m
m = 3
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Manager
Joined: 11 Mar 2003
Posts: 55
Location: Chicago
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Hi Preyshi,
While posting a question, can you psot the question without answer? So that people will have chance to work on the problem?
Of course, it would be great if you can post the answer later after 1 or 2 people have tried the question. This way everybody can get the confirmation on answer.
Thanks
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