Question

me ajudem!!!!


a) 2
b) 4
c) 6
d) 8​

Answer 1

Resposta:

$3 {}^{3x - 1} = 243$

$\frac{ {3}^{3x} }{3} = 243$

${3}^{3x} = 243.3$

${3}^{3x} = 729$

${3}^{3x} = {3}^{6}$

3x=6

x=2