Simplifying a Fraction
Source:
February 1, 2009
Problem Statement
\frac {2^{n \plus{} 4} \minus{} 2(2^n)}{2(2^{n \plus{} 3})} when simplified is:
(A)\ 2^{n \plus{} 1} \minus{} \frac {1}{8} \qquad(B)\ \minus{} 2^{n \plus{} 1} \qquad(C)\ 1 \minus{} 2^n \qquad(D)\ \frac {7}{8} \qquad(E)\ \frac {7}{4}