Question

a=[(2³)⁵:4⁶-3×(2³+3-10)]×(2³)²​

Answer 1

$[(2^3)^5:4^6-3*(2^3+3-10)]*(2^3)^2\\=[2^{15}:(2^2)^6-3*(8+3-10)]*2^6\\=[2^{15}:2^{12}-3*(11-10)]*2^6\\=(2^3-3*1)*2^6\\=(8-3)*2^6\\=5*64=320$