Knowledge Base

Solution 30430: Finding Roots of a Polynomial Using the TI-Nspire™ Family Products.

How do I find the roots of a polynomial using the TI-Nspire family products?

To find the roots of a polynomial using the TI-Nspire family handhelds and computer software, please follow the example listed below.

Example: x²-5x+6

Solution:

1) Press [home] and scroll down to calculator application and press [enter].
2) Press [menu].
3) Press 3: Algebra.
4) If using the TI-Nspire CAS, press 8: Polynomial Tools



If using the TI-Nspire, press 3: Polynomial Tools



5) Press 1: Find Root of a Polynomial
6) Input 2 for Degree (which indicates the largest number of exponents)
7) Press [enter]



8) Input 1 for a2
9) Input -5 for a1
10) Input 6 for a0
11) Press [enter]



12) Press [enter] to Solve