If a and b are integers and (a*b)^5 = 128y, y could be: Choose the correct choice from the following answers.
A) 1
B) 2
C) 4
D) 8
E) 16
Distribute the exponent.   a^5 * b^5 = 128 y   Find the prime factorization of 96. This is 2^5 *2^2.   We need 2^3 (or some other power of 2 that will give us a multiple of 2^5 as our second term).   2^3 = 8   The answer is 8.
<result>D</result>
If a and b are integers and (a*b)^5 = 128y, y could be: