Question

If 2 log x = 4 log 3, the x is equal to (a) 3 (b) 9 (c) 2 (d) none of these

Answer 1

Answer:

(b) 9

Step-by-step explanation:

log x^2 = log 3^4

x^2=3×3×3×3

x^2 = 9^2

x=9