30
1 (9) (r-3) (x+2) =D24
| 10)(エ-8) (x+7) +44=0
1 (2 (x+2)?- (2-2)?= (x+2) (x-2)
114) 2(r-1)?= (r-3)?-1
※口 1)(r+8)?+8z= (x+2)?
※口 13 (3r-1)。=x(4r-1)
(15) (r-3)(r+4) = -6
|17) (2.r-3)- (r-4)°=0
|19 (2.c+3)?=Dr(r-3) +6
| 16 4.2- (x+3)?=D0
(18) (r-2)(r+4) =D7 お太里さS るす
d
| 20 2(x+2) (x-2) =D 3.c(z-4)