Question

a的八次减32因式分解怎么分？

Answer 1

a^8一32
=(a^4+4√2)(a^4一4√2)
=(a^4+4√2)(a^2+2x4次根号2)(a^2一2x4次根号2)
=(a^4+4√2)(a^2+2x4次根号2)(a+8次根号32)(a一8次根号32)。