Answer:
The lie is #2
Explanation:
Just like how dividing powers with the same bases is like subtracting exponents, multiplying them is like adding exponents.
If you substitute 4 as x in #1, you get
. This is the same as saying
, which is true.
If you substitute 4 as x, 6 as y, and 8 as z in #2, you get
. This is the same as saying
, which is not true.
If you substitute 6 as y in #3, you get
. This is the same as saying
, which is true.