( x + 2 )5 = 243
=> ( x + 2 )5 = 35
x + 2 = 3
x = 3 - 2
x = 1
\(\left(x+2\right)^5=243\)
\(\left(x+2\right)^5=3^5\)
\(\Rightarrow x+2=3\)
\(x=3-2\)
\(x=1\)
nha.
(x+2)5=243
(x+2)5=35
=>x+2=3
x=3-2
x=1
Vậy x=1
( x + 2 )5 = 243
( x + 2 )5 = 35
x + 2 = 3
x = 3 - 2
x = 1