How to factorize this polynomial
08-23-2022, 05:30 PM (This post was last modified: 08-23-2022 05:31 PM by Steve Simpkin.)
Post: #5
 Steve Simpkin Senior Member Posts: 1,209 Joined: Dec 2013
RE: How to factorize this polynomial
(08-23-2022 05:16 PM)robmio Wrote:
(08-23-2022 12:02 PM)rancom Wrote:  Hi all, I am learning math and learning how to use the HP Prime as well.

How do I factorize 4x^2+36xy+81y^2 and get (2x+9y)^2 as a result?

Things I've tried in CAS view:
- factor(4x^2+36xy+81y^2) -> 36xy+4x^2+81y^2
- factors(4x^2+36xy+81y^2) -> [4*x^2+81*y^2+36*xy,1]
- simplify(4x^2+36xy+81y^2) -> 4x^2+36xy+81y^2
- collect(4x^2+36xy+81y^2) -> 4x^2+81y^2+36xy
- cfactor(4x^2+36xy+81y^2) -> 4x^2+81y^2+36xy

You have to put the multiplication sign between the numbers, the variable "x" and the variable "y".

I don't believe you have to put a multiplication symbol between a number and its variable when entering the equation. For example entering; factor(4x^2+36x*y+81y^2) appears to be automatically interpreted as factor(4*x^2+36x*y+81*y^2) without having to enter the * after the 4, 36 or 81.

 « Next Oldest | Next Newest »

 Messages In This Thread How to factorize this polynomial - rancom - 08-23-2022, 12:02 PM RE: How to factorize this polynomial - robmio - 08-23-2022, 05:16 PM RE: How to factorize this polynomial - robmio - 08-23-2022, 05:17 PM RE: How to factorize this polynomial - Steve Simpkin - 08-23-2022 05:30 PM RE: How to factorize this polynomial - robmio - 08-23-2022, 05:35 PM RE: How to factorize this polynomial - parisse - 08-23-2022, 05:16 PM RE: How to factorize this polynomial - rprosperi - 08-23-2022, 05:48 PM RE: How to factorize this polynomial - toml_12953 - 08-23-2022, 10:35 PM RE: How to factorize this polynomial - rancom - 08-24-2022, 07:48 AM

User(s) browsing this thread: 1 Guest(s)