X^2-3x-18
If your zeros are -3 and +6 your factors should be (x+3) and (x-6) then you would multiply it out to get your polynomial which is x^2-3x-18
Answer:

Step-by-step explanation:
Recall that
, therefore, 
EXPANDED FORM: 7,000,000+20,000+30+ 2
SCIENTIFIC NOTATION EXPANDED FORM: 7×10^6+2×10^4+3×10^1+2×10^0