Question

resolva a, ( 1 /3 ) × = 81 b, ( raiz quadrada de 2 ) × =64

Answer 1

(1/3)^x=3^4

3^-x=3^4

-x=4

x=-4

Resposta: x=-4

(√2)^x=64

[2^1/2]^x=2^6

1/2x=6

x=12

Resposta: x=12