HELP!!!!!!!!!!!!!!!
Simplify 4^21
----
4^7

1. 4^28
2. 4^21
3. 4^7
4. 4^3

Question

HELP!!!!!!!!!!!!!!!
Simplify   4^21
               ----
               4^7

1. 4^28
2. 4^21
3. 4^7
4. 4^3

anonymous · Answer

@gaby6

anonymous · Answer

@sue101

anonymous · Answer

@sunlab2015  @surdawi  @MicroBot  @MATHGEOMETRY8 @Hollywood_chrissy

anonymous · Answer

Always remember that : $\frac{a^b}{a^c} = a^{b-c} $

anonymous · Answer

Hence, $$\large{\frac{4^{21}}{4^7} = 4^{21-7} = 4^{14}}$$

anonymous · Answer

Which operation would you use on the exponents to simplify the expression 57 × 511?

Addition

Subtraction

Multiplication

Division

anonymous · Answer

Which operation would you use on the exponents to simplify the expression 5^7 × 5^11?

Addition

Subtraction

Multiplication

Division

anonymous · Answer

Addition.........

anonymous · Answer

Simplify 15^4
             ----
              15^5

anonymous · Answer

@Miyuru

anonymous · Answer

@SheldonEinstein

anonymous · Answer

Do subtraction.. :)

anonymous · Answer

Simplify 15^4 ---- 15^5

anonymous · Answer

wouldnt it be 15^-9??? not a answer

anonymous · Answer

its 15^-4 and 15^5

anonymous · Answer

Do subtraction like this....$$\frac{15^4}{15^5}=15^{4-5}=15^{-1}$$

anonymous · Answer

This answer is for the one you typed before..

anonymous · Answer

Addition

radar · Answer

$$15^{(4-5)}$$

anonymous · Answer

$$\frac{15^{-4}}{15^5}=15^{-4-5}=15^{-9}$$