(1/2√a+3/4√a³-7/8√a五次方)(-16√a³
问题描述:
(1/2√a+3/4√a³-7/8√a五次方)(-16√a³
答
让你久等了!(1/2√a+3/4√a³-7/8√a五次方)(-16√a³)=-8√a⁴-12√a^6+14√a^8=-8a²-12a³+14a⁴=14a⁴-12a³-8a²(5+√6)X(5√2-2√3)=5×5√2-5×2√3+√6×5√...