pasagot naman po nito kahit ito lang please kailangan ko na po kasi ngayon ehh and I'll make you brainliest thank you so much in advance (◍•ᴗ•◍)❤

Answer:
see below
Step-by-step explanation:
1. -12p^4q^5r^2
2. 3y^3z^2
3 12y^4z^2