(x - 1)3 = 125
(x - 1)3 = 53
\(\Rightarrow\) x - 1 = 5
x = 5 + 1
x = 6.
(x - 1)3 = 125
\(\Rightarrow\) (x - 1)3 = 53
\(\Rightarrow\) x - 1 = 5
x = 5 + 1
x = 6.
( x - 1 )3 = 125
( x - 1 )3= 53
x - 1 = 5
x = 5 + 1
x = 5
=> x = 6
chúc bạn học tốt nha
(x-1)^3 = 125
(x-1)^3 = 5^3
(x-1) = 5
x = 5+1
x = 6
\(\left(x-1\right)^3=125\)
\(\left(x-1\right)^3=5^3\)
\(\Rightarrow x-1=5\)
\(x=5+1\)
\(x=6\)