Question

Find the value of x
Options being
A) 27
B) 4
C) 2
D) 8

Answer 1

B

Explanation:

81 = 9 × 9 = 3 × 3 × 3 × 3 =
`3^(4)`

Thus the
`\sqrt[4]{81}` =
`\sqrt[4]{3^(4) }` = 3

Hence x = 4 → B