+ (− 1) i −1ÿïm− in} XP+1 + (− 1) ̊ A¿(m— in) aƒ ̧xm-in-1 Xo.

(m-2n) a

A1; 43= {m+n(p—2)}b ́

-1

= {42X” + 42X1−1 + A ̧X®−2+&c. + 4¡Xo−i+1}xm

+A;(p-i+1)naƒ_xm-1Xp-i:

= { 42xTM − A ̧∞TM+n+ Å ̧æm+2n− &c. + (− 1)i − 1 ÿæm+ (i − 1) n } XP

(13.) a + bx2+cx1 = X•

bea+(b2-2ac) x

pnb

-1

m+2pn↓ xm+n−1 Xp−1.

N-1

xmn

C

(4p-5)bc

+

1

XP-1'

хт

=

(p-1) (b2-4ac) 2 a XP-1+ (p-1) (b2-4ac) 2a√ :

2(p-1) (b2-4ac) a
bcxm+3+(b2-2ac)x+1 (4p-m-5) bc

2 a(p-1)(b2-4ac) Xo-1 2 (p−1)(b2—4ac) a√ + x2-1

2(p-1)(b2-4ac) + (m+1)(2 ac - b2)

2 a (p − 1 ) (b2 — 4ac)