\(\left(x+1\right)^3=-125\)
\(\left(x+1\right)^3=-5^3\)
\(\Leftrightarrow x+1=-5\)
\(\Rightarrow x=-6\)
\(\left(x+1\right)^3=-125\)
\(\Leftrightarrow\left(x+1\right)^3=-5^3\)
\(\Leftrightarrow\left(x+1\right)=-5\)
\(\Leftrightarrow x=-6\)
Chúc em học tốt ~~~
(x+1)3=-125
(x+1)3=(-5)3
x+1=-5
x=-5-1
x=-6
Vậy x=-6