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# Title: [Johannis Wallis S. T. D. Geometriae Professoris Saviliani, in Celeberrima Academia Oxoniensi, De Algebra Tractatus; Historicus & Practicus. Anno 1685 Anglice editus; Nunc Auctus Latine. Cum variis Appendicibus; Partim prius editis Anglice, Partim nunc primum editis] Johannis Wallis S. T. D. Geometriæ Professoris Saviliani, in Celeberrima Academia Oxoniensi, De Algebra Tractatus; Historicus & Practicus. Anno 1685 Anglice editus; Nunc Auctus Latine. Cum variis Appendicibus; Partim prius editis Anglice, Partim nunc primum editis (shelfmarks Leibn. Marg. 100:1/2, Stück 2; Leibn. Marg. 100:1/2)
# Folio 175, page id 851708439:0199
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mulleo
Facie
Minus
Jomen
oc Cot
icari
send
14
st
Cap. XLHII. AE C F BR A.
Vel ponit
- c + B = a.
Et ConSequenter  ee -2bc + 3B = a a.
Ft  - eec + 3b ec - 30be + bbb = a a 2.
Adeoque = eec + 30ec = 3bBC = bbb = + a aa 2
3bec. +66bc- 360b =- 3baa 5 = + 660.
Hoc C eec - 36bC = C66 - 2b6b.
Cujus radix e = = B = a.1
Ourni Aquarionem, si radicem ACtirmatiram Spectemus (de quibus hie agit)
impollibilem este octendic. Hoc C ( quamris Radicem Nexatiram habent) nullana
admiccit radicem AFirmatiram,
Verbi eracia; Eso a = 10, d b = 3.
Adeoque xquatio a - 3644 = + 666;
Eadem cum hac 1. a4a = 9a a =- f 200.
Posito jam a = c f B
Adeoque.
e = (a - b = a - 3 = +0 - 3 =)
A.quatio cec = 36b0 = +000 + 2b0b,
Erit eec = 270 = + 100 +54 = 754
Cujus radix c = + 7.
Sed, Potico a = - c = B,
Adeoque  = (B - a = 3 = +0 =) -
A. quario cec - 3060 = = c0c = 2 BVb,
HIoc Cst cec = 27C - = 100 = 754,
Radicem nullam habebic AAirmairam ( quod ibidem demonstrat ille;) sed, iptius
Joco, Negatiram, e=
Adeoque (hoc proceltu) mucacur radix Afirmacira an in Nexatiram seu Prira.
tivam e.
II. Aquario au a = 3baa = + c55.
POsito a = e - b,
Adeoque + ecc - 3bec + 3630 -30B = + a a a 2
+ 3bee=6bbc + 366b = + 366a5 = +666
FIt, eec = 3bbe = +566 -266b. Cujus ractix e = a. +. b.
TTL. Aguatio at = 3ba == - 66C,
Posito a =- b - e;
Ft conseguenter = cec + 5Bcc - 3bbC + 30B = + a a a 2 = = e5C
-3bec +66b0 = 3666 = - 3ba a 5
Fit eec = 3bb0 = + cc5 = 2bbb. Cujus radix e = b - a.
Vet, polico a = b. + c
11P19B
110B
AdCOque