(81)1/2 =
3
9
27
81
If 3x - y = 27 and 3 x + y = 243, then x = ?
0
2
4
6
(1000)7 ÷ 1018 =
10
100
1000
10000
(a2 + b2)0 =
a4
a2
1
32 × 33 × 92 =
817
39
324
97
(a - b)2 × (a - b)-4 =
(a - b)
(a - b)2
1/(a - b)2
(a - b)6
x 1/3
x 2/3
x6
x 3/2
x2
x-2
x3
x-3
16 1/2 =
8
42
4 x8
8 x4
4 x4
8 x8