A.3.1x2+8
2
270-1
=(x+2)
3
(3a-1)
3125-x
3
=(5-x)"
#
4-64g 5640-125b3
= (x-4y)',, = (4a-5b)"
6. ig-27
=(xg-3)34
#
x+
4.1.64xy
=(4x-y²),
6
2
3. a²+26 a³b3-27 b6
2
2
=(x+1)3,
(03-3×(a²)×(+363)+3×ax(+3b2)+278
0°-300x36-30-276-2760
(a+27b)(a-b),
3
a²-a'bab'-'76'
+2