Question

6 . 2^x + 3 . 2^x= 72

Answer 1

6 . 2^x + 3 . 2^x= 72

( 6 + 3 ) . 2^x = 72

9 . 2^x = 72

2^x = 72 : 9

2^x = 8

2^x = 2³

=> x = 3

Answer 2

6 . 2^x + 3 . 2^x= 72

2^x  . (6+3) = 72

2^x . 9 = 72

2^x = 8

2^x = 2³

x = 3

Answer 3

Đề bài->9.2^x=72->2^x=8->x=2

k nha

Answer 4

  6 . 2^x + 3 . 2^x = 72

     2^x . (6 + 3 ) = 72

             2^x . 9 = 72

                  2^x = 72 : 9

                  2^x = 8

                  2^x = 2³

                 => x = 3

Answer 5

6.2^x+3.2^x=72

2^x . (6+3)=72

2^x.9=72

x=72:9

x=8