3a次=6,27b次=50,求3(3b+a)
问题描述:
3a次=6,27b次=50,求3(3b+a)
(3b+a)是3的次方
答
解
3^a=6
27^b=3^3b=50
∴
3^(3b+a)
=3^3b×3^a
=50×6
=300