Q$.2$: Consider the polynomial $f(x)=x^3-10x^2+30x-27$ :

a$)$ Generate a table of $x$ vs$.f(x),$ where $x$ ranges between $0$ to $7\mathrm{.}5$ with an increment of $0\mathrm{.}5.$

b$)$ Sketch $x$ vs$.f(x),$ and then use the approximation tool $($trendline$)$ to find the best Excel function that resembles this $f(x).$

c$)$ Specify the number of roots of $f(x),$ and find them using Excel.

Pleasr help How to do it on excel