Question

Tìm x 

( x-6)^2 = 9

(2x-7)^2= 169 

x^3 = 216 

Answer 1

( x-6)^2 = 9

(x-6)^2=3^2

=>x-6=3

   x=3+6

  x=9

(2x-7)^2= 169 

(2x-7)^2=13^2

=>2x-7=13

  2x=13+7

  2x=20

   x=10:2

   x=10

x^3 = 216 

x^3=6^3

=>x=6

Answer 2

(x-6)^2=9

x-6^2=9

x-36=9

x=9+36

x=45

(2x-7)^2=169

2x-7^2=169

2x-49=169

2x=169+49

2x=218

x=218:2

x=109

x^3=216

x^3=6^3

=>x=6

tick cho mk nha bạn

Answer 3

Huỳnh Minh Quý bạn làm sai òi kìa