Expanding Polynomials - HP 39gs Master Manual

E x p a n d i n g p o l y
E x p a n d i n g p o l y
Expand the expressions below.
(i)
(ii)
(i) Use
POLYFORM((2X+3)^4,X)
Use the
Result: 16x
+ 96 x + 216x
4
(ii) Use
POLYFORM((3A-2B)^5,B)
as a function of
ing the result from the first expansion and expanding
this time as a function of
used to view it, using the left and right arrows to scroll the
screen left and right.
Result: 243a
− 810a b + 1080a b − 720a b + 240ab
5
n o m i a l s
n o m i a l s
( )
2x + 3
4
( )
3a − 2b
5
to expand the polynomial.
key to examine the result.
+ 216x + 81
3 2
to expand the polynomial
. Then use the polynomial function again,
B
. The
A
4 3 2
key can then be
− 32b
2 3 4 5
304