) . 
Produ<as of three Quantities can be taken out of Quan- 
tides whofeNumber is m +6 that x 
i» + 4 . ' ■ ^ 
^ therefore the Coefficient "of the 
fourth Term in the Value of C G mull be v 
^ + 5- ^ 
X ■ • 
3 
In general, in expreffing the Value of thp a 
of any two Coefficients C and G, if ,v exp efs fhS'^ 
der of any Term of. this Value as A'^?n 5 9’'* 
Nntnhfr nf "T i V aiue as A i , that is, the 
JN umber of Terms that precede it, the Coefficient of 
that Term muft be + ,, x ar + ^ _ x 
I X 7 X 
2. a; -[- m — 
X 
3cc, taking as many Fadors as there are 
Units in x, 
fo find by this Propofition 
fh ^ Coefficient E, then fuppofe m=o 
‘fi® Dimenfions of the cLfficients in 
this Cafe vaniffiing, and we ffiall have E' = E' x E' + 
xD'F+3x^xC'G'+4x£x|-x B ' H > 
^ r + 2 , 5 " X K. Therefore if E' x E ex- 
prefs the Sum of the Produfts of any two pa«s o^F 
multiplied by each other, we ffiall have E‘ ~ E/x E^ 
^ 2nd therefore E'xE, D'F/ 
3 C'G' + , o B' H'+ 3 j A'P + ,\ 7 k 
^ CoPv» 
