Question

Write

Answer 1

hehehehehehehe.......

Answer 2

$8=2^3\\4=2^2\\\\8^3\div4^3\times2^5=(2^3)^3\div(2^2)^3\times2^5\\\\\text{Use}\ (a^n)^m=a^{n\cdot m}\\\\=2^{3\cdot3}\div2^{2\cdot3}\times2^5=2^9\div2^6\times2^5\\\\\text{Use}\ a^n\times a^m=a^{n+m}\ \text{and}\ a^n\div a^m=a^{n-m}\\\\=2^{9-6+5}=2^8$