Question

Solve:
$(2^{20}÷2^{15})\times 2^3$

Answer 1

$(2^{20}÷2^{15})\times 2^3$

$\Rightarrow \left(2^{20-15}\right)\times 2^3$ $[a^b÷a^c=a^{b-c}]$

$\Rightarrow 2^5\times 2^3$ $[a^b\times a^v=a^{b+c}]$

$\Rightarrow 2^{5+3}$

$\Rightarrow 2^8=256$