Question

tim x

(3/8 - x)^3 * 1/16 = 50%

giup minh voi nhe !!

Answer 1

(3/8 - x)^3*1/16=50% 

=> (3/8 - x)^3=50% chia cho 1 phần 16 

=> (3/8 - x)^3=8 

=> (3/8 - x)^3=3^3 

=> 3/8 - x=8 

=> x=3/8 - 8 

=> x= - 61/8

Answer 2

nhớ k cho m nha

Answer 3

( 3/8 - x )³ . 1/16 = 50%

<=> ( 3/8 - x )³ . 1/16 = 1/2

<=> ( 3/8 - x )³ = 1/6 . 16

<=> ( 3/8 - x )³ = 8/3

<=> ( 3/8 - x ) = 2/3

<=> x             = 3/8 - 2/3

<=> x             = -7/24