Page 31 - aljaber

@ @¶ìÿa@óÝy‹¾a@ u@ @QX

. 25 < 29 < 36 36 = 6 25 = 5
. 5 < 29 < 6
.6 . 25 < 29 < 36

5 29

.x ( )2 x x =x :
.
. x= ()
39 ( )
112 ( ) yx xy = x y
13
yx x= x
yy

:

80 ( ) (3 7 )2 ( )

. 39 = 39 = 3 ()
()
13 13

( ). 3 2 7×3 7=9 7× 7 = 97 = 63

7 =3

. 80 = 16 × 5 = 16 5 = 4 5 ()

. 112 = 16 × 7 = 16 7 = 4 7 ()

.23 = 8 " 2 " 2 × 2 × 2 = 23

.3 8 = 2 8 2

. 3 27 = 3 3 −8 = −2