Question

\(\left(x-1\right)^3=-27\)

Answer 1

\(\left(x-1\right)^3=\left(-27\right)\)

\(\left(x-1\right)^3=\left(-3\right)^3\)

\(\left(x-1\right)=\left(-3\right)\)

\(x=1+\left(-3\right)\)

\(x=\left(-2\right)\)

Vậy ...

Answer 2

\(\left(x-1\right)^3=-27\)

\(\Rightarrow\left(x-1\right)^3=\left(-3\right)^3\)

\(\Rightarrow x-1=-3\)

\(\Rightarrow x=-2\)

Answer 3

(x-1)^3=(-3)^3

suy ra x-1=-3

suy ra x =-3+1=-2

Answer 4

tick cho mk nhé

Answer 5

\(\left(x-1\right)^3=-27\)

\(\Rightarrow\)\(\left(x-1\right)^3=\left(-3\right)^3\)

\(\Rightarrow x-1=-3\)

\(\Rightarrow x=-3+1\)

\(\Rightarrow x=-2\)