Answer:
it's D
Step-by-step explanation:
You use distribute property, then add all like terms
D
Break it into 2 parts.
First Part
4s (5s^2 + 10s + 3)
20s^3 + 40s^2 + 12s
Second Part
2 (5s^2 + 10s + 3)
10 s^2 + 20s + 6
Now add the like terms
20s^3 + (40s^2 + 10s^2) + (12s + 20s) + 3
20s^3 + 50s^2 + 32s + 6
