问题
选择题
若2x+5y-3=0,则4x•32y=( )
A.32
B.16
C.8
D.4
答案
∵2x+5y-3=0,∴2x+5y=3,
∴4x•32y=22x•25y
=22x+5y,
=23,
=8,
故选C.
若2x+5y-3=0,则4x•32y=( )
A.32
B.16
C.8
D.4
∵2x+5y-3=0,∴2x+5y=3,
∴4x•32y=22x•25y
=22x+5y,
=23,
=8,
故选C.