Question

Question 2(iii)
Simplify and express each of the following in exponential form:
(iii) ${25}^4÷5^3$

Answer 1

(iii) ${25}^4÷5^3={\left(5^2\right)}^4÷5^3=5^8÷5^3[\because (a^m{)}^n=a^{m\times n}]$
$=\left[5^{8-3}\right]=5^5=[\because a^m÷a^n=a^{m-n}]$