Question

Tìm x, biết :

(x - 1)^5 = -32

Answer 1

Ta có : (x - 1)^5 = -32

\(\Rightarrow\) (x - 1)^5 = (-2)^5

\(\Rightarrow\) x - 1 = -2

\(\Rightarrow\) x = (-2) +1 = -1

Answer 2

\(\left(x-1\right)^5=-32\)

\(\left(x-1\right)^5=\left(-2\right)^5\)

\(\Rightarrow x-1=-2\)

\(\Rightarrow x=-2+1\)

\(\Rightarrow x=-1\)