(I have two questions)

1. Solve for x without a calculator:

This is what I have so far:
...and now I'm stuck.

2. Simplify:
2log4(9)-2log3 <--how do you simplify with different bases?


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  1. from
    log3 (x^2) = log3 (16/625
    so x^2 = 16/625
    x = √(16/625) = 4/25

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