SOLUTION: How do I solver log2 4 - log2 16 Thats Log Base 2 of 4 minus log base 2 of 16

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Question 136596: How do I solver log2 4 - log2 16
Thats Log Base 2 of 4 minus log base 2 of 16
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
log%28b%2C%28a%29%29-log%28b%2C%28c%29%29=log%28b%2C%28a%2Fc%29%29, so



If y=log%28b%2Cx%29, then b%5Ey=x, so

If y=log%282%2C%281%2F4%29%29, then 2%5Ey=1%2F4, but 1%2F4=1%2F%282%5E2%29=2%5E%28-2%29 so y=-2