Page 30 - aljaber

@ @QW@ @†a‡Èÿa@ @

( )3x 2y3 2 ( ) : ()
y3
 x3 2 ()
2y

.  x3 2 = x 3×2 = x6 ()
2y (2y)2 4y 2 ()

( ). 3x 2y 3 2 = 9x 4y 6 = 9x 4y3
y3 y3

[Square and Cubic Roots] (. )

. 32 = 9 " 3 " 3 × 3 = 32

. 9=3 39

. a ≥0

a <0 .a .a

. a ≥0

36 25 16 9 4 1

6 .6

.b =/ 0 ba a
. 29 b

()