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

##### 1 Answer
Oct 14, 2014

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 $f \left(x\right) = {x}^{2} + 2 x - 8$

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.