Question

Tim x biet 3^x = 81

 

Answer 1

3^x=81 <=> 3^x=3^3 <=> x=x

Answer 2

3^x  = 81

=> x = 4

k nha

Answer 3

\(3^x=81\)

\(3^x=3^4\)

\(\Rightarrow x=4\)

Vậy x=4

Answer 4

\(3^4=81\Rightarrow x=4\)

Ủng hộ mk nhơ!!!^_^

Answer 5

3^x=81

<=>3^x=3^4

<=>X=4

Answer 6

3^x=81

=>x=4 thôi

t nha pn ơi , mn ủng hộ 

Answer 7

3^x=81

=>3^x=3^4

=>x=4

Vậy x=4

Answer 8

3^x=81

3^x=3^4

Answer 9

3^x=3^4

x=4