Question

20 mũ 3x = 20 mũ 13 : (4 nhân 5) mũ 4

Answer 1

`20^(3x) = 20^13 : (4 xx 5)^4`

`=> 20^(3x) = 20^13 : 20^4`

`=> 20^(3x) = 20^9`

`=> 3x = 9`

`=> x = 3`

Answer 2

\(20^{3x}=20^{13}:\left(4.5\right)^4\\ 20^{3x}=20^{13}:20^4\\ 20^{3x}=20^9\\ 3x=9\\ x=3\)

Answer 3

20 ^3x = 20^13 : ( 4x5) ^4

20^3x= 20^13: 20^4

20^3x= 20^9

3x= 9 

x=3.