[BASIC HELP] Equations on HP Prime

03052019, 04:03 PM
Post: #1




[BASIC HELP] Equations on HP Prime
Hello there!
First, I would like to apologize for such a noob question. I don't know if this is possible  probably it's but I'm to stupid to find it myself: how can I """desiplify""" (I really don't know how to properly call this) an equation? Let's say I have (a+b)^2, where can I put it to see a^2+2ab+b^2? I know about the Solve app but if I'm right I need to give a value to the variables to solve one of them, e.g set b=3 in (a+b)^2. Thanks in advance for the help. If this question still confusing, I can try to explain it better in the comments. 

03052019, 05:08 PM
(This post was last modified: 03052019 05:35 PM by StephenG1CMZ.)
Post: #2




RE: [BASIC HELP] Equations on HP Prime
In CAS, "simplify((a+b) squared)" gives "a squared + 2ab + b squared"
Where squared = tap the x squared key (Unless a and b have been given numerical values) And factor() or collect() takes you back. Stephen Lewkowicz (G1CMZ) 

03052019, 05:42 PM
Post: #3




RE: [BASIC HELP] Equations on HP Prime
If you have purged a, and b so that they are purely symbolic then:
[CAS] (a+b)^2 == > (a+b)^2 expand((a+b)^2) ==> 2*a*b+a^2+b^2 collect(2*a*b+a^2+b^2) ==> (a+b)^2 Dale 

03052019, 06:41 PM
Post: #4




RE: [BASIC HELP] Equations on HP Prime
(03052019 04:03 PM)fpicoral Wrote: Hello there! Expand(expr) Best, Aries 

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