@ @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
()