How do I find the real zeros of a polynomial function on an Nspire?
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
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
Then to find the zeros we set this equal to zero because the y values at these points is zero
Then type comma
Then hit enter and it will spit out the x values of the zeros.