GMAT Question of the Day – Problem Solving – Exponents
If m and z are integers and if \( {{21}^{2m}}{{9}^{4m+2}}={{3}^{z}}{{7}^{4}} \), what is the value of m + z?
A. 8
B. 14
C. 20
D. 24
E. 26
Show the answer
Correct Answer: E.
GMAT Question of the Day – PS- Exponents 1
