Question

Need help is undefined for all of the following, except for which value?
7a^5 over
b(b-1)(b+1)

A.
a = 0
B.
b = 1
C.
b = –1
D.
b = 0

Answer 1

i say it's c

Answer 2

The denominator tells the undefined values. Make the substitutions. If you get one where the denominator is NOT 0, that's your answer

Answer 3

Thanks

Answer 4

so D

Answer 5

Show me what you got when you plugged in 0 for b