Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

How would I go about solving $$2^x -2^{x-2}=3 *2^{13}$$Hints please. Thank you.

share|cite|improve this question
up vote 10 down vote accepted

HINT: Factor: $2^x-2^{x-2}=2^{x-2}(2^2-1)$.

share|cite|improve this answer
I just solve it before you posted your hint. Thanks anyway) – Koba May 6 '13 at 20:00
@Dostre: You’re welcome. (And good.) – Brian M. Scott May 6 '13 at 20:05

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.