Question

Simplify 5^-4/5^3 (help please asap)

Answer 1

=5^(-4)*5^(-3)

=5^(-7)

=1/5^(7)

Explanation:

i took the denominator and multiplied it to the numerator

when powers of the same base are multiplying we add the exponents, so I added the -3 to -4 and got -7 which gives me 5^(-7) which is 1/5^(7)

Answer 2

1. Rewrite 5
2. 
   `{5}^(2?)`
3. as
4. 
   `{5} -^(4?) * {5}^(7?)`
5. Cancel out 5-4 both numerator and denominator
6. 
   `\frac{1}{5 {}^(?7) ?}`
7. calculate 5 to the power of 7 and get 78125
8. 
   `(1)/(78125)`
9. is equal to 0.0000128