Hello from MrBillDoesMath!
Answer:
3y^2 + 2y + 5
Discussion:
Start by combining like terms:
5y^2+3y-2y^2-y+5= => combine y^2 terms
y^2(5-2) + 3y -y + 5= => combine y terms
y^2(3) + y(3-1) + 5 =
Thank you,
MrB