Question

helo sir/madam
can u help me to solve this problem

sOLVE 2log 15 +log(5-x)- log4x=2
3 important rules of logs

1. log (AB) = log A + log B
2. log(A/B) = log A - log B
3. log A^n = nlogA

so 2log15 + log(5-x) - log 4x = 2
log 15^2 + log(5-x) - log 4x = 2
log (225(5-x)/(4x) ) = 2
225(5-x)/(4x) = 10^2 = 100
400x = 1125 - 225x
625x = 1125
x = 1125/625 = 9/5 or 1.8
ROCKSON BEDI

Related Questions

need helo solving this Equate y=-4 to y=mx+b. What is the value for m so that these equations are... helo sir/madam can u help me to solve this problem solve the following simultaneous equation... helo sir/madam can u help me to solve this problem find the value of x in terms of b of the equ...