Question

若2x+5y-3=0,求4^（x-1)X32^（y）的值.

Answer 1

4^（x-1)*32^（y）

=（2^2）^（x-1)*(2^5)^y

=2^(2x-2)*2^5y

=2^(2x+5y-2)

=2^(2x+5y-3)*2

=2^0*2

=1*2

=2