\(\left(9-x\right)^3=64\)
\(\left(9-x\right)^3=4^3\)
\(\Leftrightarrow9-x=4\)
\(x=5\)
(9-x)3 = 64
=> 9-x = 4
=>x = 5
(9-x)3=64
(9-x)3=43
9-x=4
x=9-4
x=5
vậy x=5
(9-x)3=64
(9-x)3=43
=>9-x=4
x=9-4
x=5
Vậy x=5
sai chỗ nào vậy
CẢM ƠN MẤY BỒ NHÌU
IU LẮM
Ta có : ( 9 - x )3 = 64
\(\Leftrightarrow\)( 9 - x )3 = 43
\(\Leftrightarrow\)9 - x = 4
\(\Rightarrow\)x = 5
Vậy : x = 5
( 9 - x )3 = 64
( 9 - x )3 = 43
9 - x = 4
x = 9 - 4
x = 5
Vậy x = 5
ta có:(9-x)^3=64
<=>(9-x)^3=4^3
<=>9-x=4
<=>x=5
vậy x=5