This should help you on how to get the zeros and the answer for the bottom question is A
Answer:
906
Step-by-step explanation:
2x^2-7=4
subtract 4 from both sdies
2x^2-11=0
therefor
2x^2=11
divide by 2
x^2=5.5
square root both sdies
x=-2.345 or 2.345
If you multiply them all you get 3.0519273e+15 as your answer.