Page 137 - aljaber
P. 137
@ @¶ìÿa@óÝy‹¾a@ u@ @QRT
. ()
.3 :( ) ()
.
16 x
1 + 1 = 26
10 16 160
.
x 26 = 13
160 16
. x = (13)(160) = 5
(16)(26)
:( ) ( )
)
x +4 .x
.x + 4 +1 = x + 5
10x + (x + 4) + 5(x + 5) = 301
16x + 29 = 301
16x = 301 − 29 = 272
. x = 272 = 17 :( ) (
16
.y x
. xy = 20 x + y = 10
. 1 + 1 = y + x = 10 = 1
x y xy 20 2
:( ) ()