C 338 ] 
Exemp, I. 
-f bz^ — ap zz— aaqz-f-aa ar =a. 
Sit X — i b = z & ^r/^ 
' X X 4 b x-j- ,V b b = z z 
XXX— ixxb-f-i^x bb— b bb = z^ 
& x^^bx^ + ib bxx - ,^b^ X + .^^b^ = z\ 
hwc. 
x*-bx' -fibbxx- ,\bbbx + ,f ^ b*. =z^ 
rfbx'^ibbxx + V-, bbbx-/^ b^ =4-bz' 
— a p X X -f I a p b x — apbb=:-^apzz 
,,t^\V^ aaq.x-f -iaaqb=w.aaqz 
-f- aaar 
Hartim omnium fummap ^e^aatio nov/t fecundo ttrmino carens, 
qtuc[; froinde juxta reguUm Cartefianam coi^Jhuipfftty fumen^ 
do loco i p dfimidium eoefficientis termini Urtfi per a Jkre L^ttts 
rectum divift^ hoc efi — A — — i p,; i^r- Jloco i q, dimtdi* 
um co^cientts tetmihi xj^mrti pr,'^ a di^uift^ five 4? '^'^— ^ 
4" 4^ i ^« Cujus fartes [tgno 4* /^^'^-«^^ fmifirorfnm ^ 
a 
Axe^jigno-- notat^ dextrorfum collocmd^ fmty ut ha^eatur 
cmtrum Cif ouli ad conjtructionem requifiti^ ac cujus inter fecti^ 
ones cum Fdrabola^ dimifjis in axem f erfendiculisy radices om^ 
nes wras X defgmt^ ajfirmativas cjuidem addextram axis, ne'^ 
gativas vero adfimflram. Cum wro x — b = z, ducendo It^ 
neam Axi fardlelamyad dextrum e]m htm & ad diflantiam 4b, 
prfendicuU ilia ad ham faraHelam terminata dejignabunt omnes 
radices qu^fit as z, affirmativas ad dextram^ negatives vera ad 
fmifiram. Radium circuli quod attinet, h tbetur iUe addendo 
-partes negatives ac auferendo partes affirmati'uas termini quin- 
ti per a a divifi^equadrato line a A E,^ centro invent 0 fi ad 
Ver- 
