Problem: Consider the statements:
I: (−4​)(−16​)=(−4)(−16)​,
II: (−4)(−16)​=64​, and
III: 64​=8.
Of these the following are incorrect:
Answer Choices:
A. none
B. I only
C. II only
D. III only
E. I and III only
Solution:
−4​=2−1​,−16​=4−1​∴(−4​)(−16​)=8(−1)=−8 but (−4)(−16)​=64​=8 ∴ Statement I is incorrect.