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If 2^x.....- 3(2^13), what is the value of x?

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Source: — Data Sufficiency |
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Re: If 2^x.....- 3(2^13), what is the value of x?

by El Cucu » Sat Jul 18, 2009 11:56 am
alexdallas wrote:anyone can help with this one?
thank you
Factor the expression 2^x-2 (2^2 - 1)=3. 2^13, 2^x-2 .(3)= (3).2^13, x-2=13, x=15
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by alexdallas » Sat Jul 18, 2009 1:44 pm
tks..couldnt really follow all of your notes, but you're right, we need to factor here, and then it worked out.

tks.
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