Question

expand the logarithm as a sum or difference and or contant multiple of logarithms

log _4 16xy^2

thank you.. I know you do this:
log _4 16+ log _4 (x)+ log _4 (y^2)
and I know the first part = 2 and the last part you use the exponent rule =y^2log4
but the middle i don't get..thanks




Answers

mathhelper
For the last part of log<sub>4</sub> (y^2)
you follow the pattern of

log<sub>a</sub> (x^n)
= n log<sub>a</sub> x

so log<sub>4</sub> (y^2)
= 2 log<sub>4</sub> y

the first part of your solution is ok

final answer:
2 + log<sub>4</sub> x + 2 log<sub>4</sub> y
Matilda
love you guys

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