Question

Tìm x :

x^3-1=7

Answer 1

\(\Rightarrow x^3=8\)
\(\Rightarrow x=2\)

Answer 2

$\Rightarrow {}^{}=8$
$\Rightarrow x=2$

Answer 3

x³-1=7

x³=8

=>x=2

Answer 4

7+1=8 nhé

Answer 5

x^3 - 1 = 7
x^3       = 7 + 1
x^3       = 8
x^3       = 2^3
-> x = 2