Surds and Indices with Explanation

Q8. What is the quotient when (x-1 - 1) is divided by (x - 1)?

A.
1

x
B.
-1

x
C.
1

2x
D.
1

x2

Q9. Find the value of (16)3/2 - (16)-3/2?

A.
4097

64
B.
4077

64
C.
4087

64
D.
4095

64

Q10. + 2-3 is equal to:

A. 1 B. 2n + 1
C. -2n + 1 D. 2n - 2

Q11. If 2n + 4 - 2n + 2 = 3, then n is equal to:

A. -1 B. -2
C. 2 D. 0

Q12. If 2x = 3   32, then x is equal to:

A. 3 B. 5
C.
5

3
D.
3

5

Q13. 49 x 49 x 49 x 49 = 7?

A. 7 B. 4
C. 16 D. 8

Q14. (2.4 x 103) ÷ (8 x 10-2) = ?

A. 30 B. 3 x 10-5
C. 3 x 104 D. 3 x 105