What are the zeros of the function? f(x)=x3−2x2−3x

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

True or false look at the picture pls : /

Frank owns a $141,000 home, for which he has a 30-year mortgage in the amount of $700 a month. once he has paid off mortgage, how much will he have paid in investment? a. $111,000 b. $109,000 c. $120,000 d. $141,000