SOLUTION: Use properties of logs to simplify the expression log[a](32)+(4/5)log[a](16)-(4/5)log[a](8)+log[a](1/(2^(9/5)) as much as possible 1.) log[a](16) 2.) log[a](32) 3.) 16 4.) lo

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Use properties of logs to simplify the expression log[a](32)+(4/5)log[a](16)-(4/5)log[a](8)+log[a](1/(2^(9/5)) as much as possible 1.) log[a](16) 2.) log[a](32) 3.) 16 4.) lo      Log On


   



Question 779425: Use properties of logs to simplify the expression log[a](32)+(4/5)log[a](16)-(4/5)log[a](8)+log[a](1/(2^(9/5)) as much as possible
1.) log[a](16)
2.) log[a](32)
3.) 16
4.) log[a](2^-6)
5.) log[a](64)

Answer by AnlytcPhil(1806) About Me  (Show Source):
You can put this solution on YOUR website!
log%28a%2C%2832%29%29%22%22%2B%22%22expr%284%2F5%29log%28a%2C%2816%29%29%22%22-%22%22expr%284%2F5%29log%28a%2C%288%29%29%22%22%2B%22%22log%28a%2C%281%2F%282%5E%229%2F5%22%29%29%29

Write the last term with a negative exponent

matrix%282%2C1%2C%22%22%2Clog%28a%2C%2832%29%29%29matrix%282%2C1%2C%22%22%2C%22%22%2B%22%22%29matrix%282%2C1%2C%22%22%2Cexpr%284%2F5%29log%28a%2C%2816%29%29%29matrix%282%2C1%2C%22%22%2C%22%22-%22%22%29matrix%282%2C1%2C%22%22%2Cexpr%284%2F5%29log%28a%2C%288%29%29%29matrix%282%2C1%2C%22%22%2C%22%22%2B%22%22%29matrix%282%2C1%2C%22%22%2Clog%28a%2C%282%5E%28-9%2F5%29%29%29%29%29

Write 32 as 25, 16 as 24, and 8 as 23

matrix%282%2C1%2C%22%22%2Clog%28a%2C%282%5E5%29%29%29matrix%282%2C1%2C%22%22%2C%22%22%2B%22%22%29matrix%282%2C1%2C%22%22%2Cexpr%284%2F5%29log%28a%2C%282%5E4%29%29%29matrix%282%2C1%2C%22%22%2C%22%22-%22%22%29matrix%282%2C1%2C%22%22%2Cexpr%284%2F5%29log%28a%2C%282%5E3%29%29%29matrix%282%2C1%2C%22%22%2C%22%22%2B%22%22%29matrix%282%2C1%2C%22%22%2Clog%28a%2C%282%5E%28-9%2F5%29%29%29%29%29

Move the xponents out front as multipliers:

5%2Alog%28a%2C%282%29%29%22%22%2B%22%224%2Aexpr%284%2F5%29%2Alog%28a%2C%282%29%29%22%22-%22%223%2Aexpr%284%2F5%29%2Alog%28a%2C%282%29%29%22%22%2B%22%22%28expr%28-9%2F5%29%29%2Alog%28a%2C%282%29%29

Simplify:

5%2Alog%28a%2C%282%29%29%22%22%2B%22%22expr%2816%2F5%29%2Alog%28a%2C%282%29%29%22%22-%22%22expr%2812%2F5%29%2Alog%28a%2C%282%29%29%22%22-%22%22expr%289%2F5%29%2Alog%28a%2C%282%29%29

Factor out loga(2)

(5+16%2F5-12%2F5-9%2F5)loga(2)

Write 5 as 25%2F5

(25%2F5+16%2F5-12%2F5-9%2F5)loga(2)

20%2F5·loga(2)

4·loga(2)

Edwin