Author: Stuart Kovinsky Posted: Sat Mar 13, 2010 3:02 pm (GMT -8) jpjp wrote: I factored it a bit different than the poster above me, but it’s up to you what’s easier for you. problem: 2^x – 2^(x-2) = 3 * 2^17 Working just the left side of the equation: 2^x – 2^(x-2) factor out 2^(x-2), which results in 2^(x-2) * (2^2 – 1) , which equals 2^(x-2)*3 going back to the full formula ..

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Problem Solving :: RE: Exponent Issue