Answer:
a) 5²/4². b) 4.2²/2.8²
This is your answer ☺️☺️
a.
b. or
2. Cancel :
=
Now apply the radical rule: assuming
The final answer for b.) should be
Step-by-step explanation:
We have
-9 + 7 = -2
You can also rewrite this as
7 - 9 = -2
If it makes you more comfortable.
Hope this helps.