) o ( 
2JI 
a * — ab* 
a a 2 — b* —a 
X 
b 3 — ab b * — 
(* + £*) = 
^-7 = 
3 * 
- VAC — 1 . Verum ob AO + 
SAC 
■2.BC+ A* — o, erit — AC— B ± ^B* — A\ & (5 + 
* / £ 2 —A i ) ( B — ^B 2 — A’)—A % \ fiinc fi fuerit 
___ ^3 
—AC-B-VB- — A' 
, erit 
B + — A 3 
— B - 
^B 2 — A J j indeque x—(B + ^ r B- —^ 0 ! (B ■ 
* B 2 —.4 0 1 • verum fi fumatur — AC— B ^a A >, 
erit 
— A 
lôïc 
A 
a/ v -- V’R+y, 
V B— V B* — A> 
B* — A* _ B+'B*-A* t 
five x—Vn — ^rS~~r- + * B + ^ö~~~ 
quod cum antecedente ipfius x valore plane coincidit, 
, , „ A— C'JAC 
fimulque demonftrat, aequationem.*— -- 
C — i '/AC 
efle 
tantum triplicem, licet Cduos valöres admittat. Idem 
breviter hac ratione evincitur; quia_ AC = B + 
B 
A 5 dat x = 
VjjV__ j 3) & in aequatione — AC — B — 
B 3 — A % tignum quantitatis B 2 — A> folum diffe¬ 
rat a priori ipfius C valore, aequatio pro x ab hoc po- 
fteriori oriunda, per ejusdem figni mutationem inve- 
1 i 2 ~ nie- 
