l^QBLEMA ALGEBRAICViM. 7^ 



t'- AA-f-DD-V-€Gm; 4^ AB4-DE4-GH-0 

 2°. BB-f-EE-f-HH-:!^ ^. AC-i-D F^Gl=:o 

 .3^ .CC4-FF-i- 11=11 f &\ BC+EF4-HI-i:o 



quarum tres pofteriores ita repraefeiitQ ; 



4^ AB — -DE-GH; 5^ AC-:-DF-Gl; 



6\ BC=:-EF-HI 



vnde contluda fore i 



^o. so AABC A A _ (D E-f- G H) (D F -f- G D 



6». ■ • • • ~TC~ EF-+-HI 



qui valor ipfius AA in prima aequatione poritu& 

 dat : 



-(DEH-GH)(DF4-GI)-^(EF-i-HI)(DD+GG> 



"- =EF^HI 



fed^taque euolutioHe r 

 -DEGi-DFGH-f'DDHI4-EFGG=:EF+.Hr 



cuius aequationis primum membrum manifefto in^ 

 hos fidores refoluitur : r/' 



(DH-EG) (DI-FG)=::EF4-Hr. 



VL Cum igitur fit EF-|-HIzz:-BC^ erit 



BC = (EG-.DH)(DI-FG> 



fimilique modo colligetur fore 



AC = (FH-Et)(EG-DH) et 

 AI^=(Dl-FG)(FH-EI) 



quarum duarum pofteriorum produdum per prl-mam* 

 diuifum praebet 



AAzi:(FH-EI)' hincqiie A:=:±{¥llz:iEl) 

 qiiia autem fingulos- numeros tam negatiue quain 

 pofitiue capere licet , amb>guitas fig.ni nuliam varia- 



tionensi 



