Question

• Which of the following when simplified is not
equal to 27.?​

Answer 1

Answer:

\

(a) [9^10 ÷ 9^8] ÷ 3

= 9^10/9^8 × 1/3

= 9^2 × 1/3

= 81 × 1/3

= 27

(b) 3^12 ÷ 3^8

= 3^4

= 81

(c) (3^8 ÷ 3^6) × (4^0 + 5^0 + 6^0)

= 3^8/3^6 × (1 + 1 + 1)

= 3^2 × 3

= 3^3

= 27

(d) 9^0 × 3^3

= 1 × 27

= 27

Hence, the correct answer is option (a), (c) and (d).