Answer: Option 'B' and 'E' are correct.
Step-by-step explanation:
Since we have given that
[tex]-3(y-y)^2-9+7y[/tex]
Simplification needs a few steps:
[tex]-3(y-5)^2-9+7y\\=-3(y^2+25-10y)-9+7y\\=-3y^2-75+30y-9+7y\\=-3y^2+37y-84[/tex]
So, Option 'B' and 'E' are correct.
As Option 'B' says there are 3 terms in the simplified product, which is true.