Question

`(x-6)^2 = 9`

Answer 1

(x - 6)² = 9

x - 6 = 3 hoặc x - 6 = -3

*) x - 6 = 3

x = 3 + 6

x = 9

*) x - 6 = -3

x = -3 + 6

x = 3

Vậy x = 3; x = 9

Answer 2

\(\left(x-6\right)^2=9\)

\(\left(x-6\right)^2=3^2\)

\(x=6+3\)

\(x=9\)

Answer 3

( x - 6 )² = 9

( x - 6 )² =  3²

x - 6 = 3

x = 3 + 6

x = 9

Answer 4