3 years ago

Plz help me with this

Mathematics

1 answer:

Finger [1]3 years ago

3 0

Answer: c) x = 5

Step-by-step explanation:

$2\ log_3\ (x+4)-log_3\ 9=2\\\\2\ log_3\ (x+4)-log_3\ 3^2=2\\\\2\ log_3\ (x+4)-2=2\\\\2\ log_3\ (x+4)=4\\\\log_3\ (x+4)=2\\\\x + 4 = 3^2\\\\x+4=9\\\\\large\boxed{x=5}$

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