Question

How do I find the real zeros of a polynomial function on an Nspire?

Answer 1

Solve the function for when it is equal to zero using the solve feature.

The solve feature calculates the variable values for which a function equals a specified value.

To use it press

menu,
3: algebra,
1: solve

You should get something that looks like this

Then type in the function you want to find the zeros for. Here I did it for `f(x)=x^2+2x-8`

Then to find the zeros we set this equal to zero because the y values at these points is zero

Then type comma `x` because x is the variable we are solving for.

Then hit enter and it will spit out the x values of the zeros.