Question

Condense 1/2 log5 16 - 3 log5 X + 4 log5 Y

Answer 1

use these:
1) n log m = log(m^n)
2)log m + log n =log(mn)
3) log m -log n =log(m/n)

will this be helpful ?
note that base remains same in all the cases..(here it is 5)

Answer 2

log5 (4y^4)/x^3

Answer 3

thanks guys