Question

Pls answer this in the simplest way possible

Answer 1

Here is your answer

a) (5^7 ÷ 5^-3)*25

a^m × a^n =a^(m+n)

a^m /a^n =a^(m-n)

= (5^(7+3))*5^2

=(5^10)*(5^2)

=5^10+2

=5^12

in negative exponential form

=1/(5^-12)

b). [(2^-3)^2]^-1

(a^m)^n=a^(m×n)

=[2^(-3×2)]^-1

=(2^-6)^-1

=2^(-6×-1)

=2^6

in negative exponential form

=1/(2^-6)

hope this will help you!!!!!