Question

Which expression is equivalent to the one shown below ?

4^3*4^7


a)4^10

b)4^21

c)16^10

d)16^21



which expression is equivalent to the one shown below ?

x^7/ x^3


a)0

b)4

c)x^4

d)x^10

Answer 1

4^10 and x^4 are the right answers

Answer 2

Answer 1 :

Option A - 4^10

Explanation:

4^3*4^7

If bases are same and are multiplied then power will be added.

( 4 ) ^ 3 + 7

( 4 ) ^ 10

Thus, option A is correct.

Answer 2 :

Option C - x^4

Explanation:

x^7/ x^3

If bases are same and divided then powers will be subtracted

( x ) ^ 7 - 3

( x ) ^ 4

Hence, option C is correct .