Join Date: Jan 2006
Location: Shanghai, China
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Can you solve this math problem?
I can't figure this out and I feel stupid. Help me out here:
Multiple choice, no calculator allowed:
If [2^x]-[2^(x-2)]=3(2^13), what is the value of x?
The answer is d, but how do you solve this without a calculator?
edit: Nevermind, got it.
Last edited by Yan; 04-18-10 at 07:32 AM.