Question #N222
What is the value of the expression $\frac{5^2 - 3^2}{2^2 - 1^2}$?
A. 2
B. 4
C. 8
D. 16
Correct Answer is: B
We can simplify the expression using the difference of squares pattern: $\frac{5^2 - 3^2}{2^2 - 1^2} = \frac{(5+3)(5-3)}{(2+1)(2-1)} = \frac{8 \times 2}{3 \times 1} = \frac{16}{3} = \boxed{4}$.