Pode me ajudar com isso ?​

This question awards 100 ! i really don’t want to fail i will also mark you !

Oscar and julie ashton are celebrating their 15th anniversary by having a reception hall. they have budgeted $4,500 for their reception. if the reception hall charges a $90 cleanup fee plus & 36 per person, find the greatest number of people that they may invite and still stay within their budget.

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x