Question

Jika 4.^9 log 3+9.^2log4 = 10.^x log 121, maka x adalah.....

Answer 1

4.^9 log 3+9.^2log4 = 10.^x log 121, maka x adalah.....
4.^3² log 3 + 9.^2 log 2² = 10.^x log 11² 
4/2 3 log 3 + 18.^2 log 2 = 10.^x log 11²
2 + 18 = 10.^ log 11²
20 = 10.^x log 11²
2 =  x^log 11²
(11²)^1/2 = x
x = 11