Question
How does the expansion of (x + y)n and (x - y)n differ? If you can offer an example that would be very helpful.
Thank you
Thank you
Answers
Steve
think about it. (x+y)^n has + signs for all the terms.
(x-y)^n has minus signs for all the odd powers of n, since that is the same as
(x + (-y))^n
I'm sure you can provide your own examples. You might also try this web site:
http://www.wolframalpha.com/input/?i=(x-y)%5E5
Just scroll down past the graphs.
(x-y)^n has minus signs for all the odd powers of n, since that is the same as
(x + (-y))^n
I'm sure you can provide your own examples. You might also try this web site:
http://www.wolframalpha.com/input/?i=(x-y)%5E5
Just scroll down past the graphs.