Answer:
Step-by-step explanation:
a,a, and a
He needed to divide instead of subtracting it on the last step.
The answer is A hope this helps
Answer:

Step-by-step explanation:
We want to simplify:

We rewrite as:

We split the radical sign to obtain:

Simplify the square root for the perfect squares to get:

Therefore the simplified form is: 
Answer:
becuae he couldent see sorry i had to do that