若2a+3b=3,则9a∙27b的值为_.
问题描述:
若2a+3b=3,则9a∙27b的值为______.
答
∵2a+3b=3,
∴9a•27b,
=32a•33b,
=32a+3b,
=33,
=27.
故填27.