Question

已知2X+3Y-3=0,求4的X次幂乘32的Y次幂的值

Answer 1

满意答案 好评率：60% 2X-5Y+3=0

2X-5Y=3

(4^X)*[(1/32)^Y]

=[2^(2X)]*[2^(-5Y)]

=2^(2X-5Y)

=2^3

=8

10^A=4,10^B=5^(-2)

(10^B)/(10^A)

=5^(-2)/(2^2)

=1/[(5*2)^2]

=1/10^2