Question

bài 1:

a) X :(1/2)³ = -1/2

b) (3/4)⁵ . X = (3/4)⁷

c) (2/5)⁸ : X = (2/5)⁶

d) (2/3) . X = (4/9)³

e) (1/2)^X = 1/32

f) 343/125 = (7/5)^X

Answer 1

a, x:(1/2)³=-1/2

x:1/8= -1/2

x= -1/2.1/8

x=-1/16

b,(3/4)⁵.x=(3/4)⁷

x=(3/4)⁷:(3/4)⁵

x= (3/4)²

c,(2/5)^8:x=(2/5)^6

x=.......

như cái trên nha lm giống thế

Answer 2

thanks nha

Answer 3

e,(1/2)^x=1/32

=> (1/2)^x=(1/2)^5

=> x=5

f, 343/125=(7/5)^x

=> (7/5)^3=(7/5)^x

=> x=3