Let's look at it, one by one.
First:
- 5 times of a added to 1
- a subtracted to 3
Combine them as if:
5 times of a added to 1 multiplied, a subtracted to 3, multiplied together.
Second:
- p added to 4
- p added to 4 multiplied to 2
- p added to 4 multiplied to 2 divided by 10