Question

Using laws of exponents, simplify and write the answer in exponential form:
$(2^{20}÷2^{15})\times 2^3$

Answer 1

$=\frac{2^{20}}{2^{15}}\times 2^3$

$=2^{20-15}\times 2^3$ using $\frac{a^m}{a^n}=a^{m-n}$

$=2^{5+3}$ using $a^m{a}^n=a^{m+n}$

$=2^8=256$