What is the maximum of f(x) = –2x² – 20x – 48?

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b