(x+5)3 = -64= (-4)3
=> x + 5 = -4
x = -9
(x+5)3 = -64= (-4)3
=> x + 5 = -4
x = -9
#
(x+5)3=-64=-43
=> x+5=-4
<=> x= -4-5=-9
KL:....
K nha
\(\left(x+5\right)^3=-64\)
\(\Rightarrow\) \(\left(x+5\right)^3=\left(-4\right)^3\)
\(\Rightarrow\) \(x+5=-4\)
\(\Rightarrow\) \(x=-9\)