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You use the identities: log(ab) = b log(a), and log(ab) = log a + log b.

In this case, 5 log42 + 7 log4x + 4 log4y = log432 + log4x7 + log4y4 = log4 (32x7y4).

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โˆ™ 2010-04-30 14:47:29
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Q: Could you Condense the expression 5log4 2 plus 7 log4 x plus 4 log 4 y?
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What is the expression with the logarithm Log 4 plus Log 3?


Log3 81 x log2 8 x log4 2 equals x?

log3 81 × log2 8 × log4 2 = log3 (33) × log2 (23) × log4 (40.5) = 3 × (log3 3) × 3 × (log2 2) × 0.5 × (log4 4) = 3 × 1 × 3 × 1 × 0.5 × 1 = 9 × 0.5 = 4.5

What is log4 19 to four right decimal places?

It is 2.1240

How do you express log4 7 as a single logarithm with base 2?

The rule for converting log bases is: log4(7) = log2(7)/log2(4) Now 4 = 2 squared so log2(4) = 2 So log4(7) = log4(7)/2 = (1/2)*log2(7) By the way, the "new and improved" browser now does not accept subscripts or superscripts so I hope you understand this.

The value of log log4log4x equals 1 then x equals?

the value of log (log4(log4x)))=1 then x=

Log 4 64 equals y?

Log4 64=y 64=4y 26=22y Therefore y=3

How do you solve k equals log4 91.8?

k=log4 91.8 4^k=91.8 -- b/c of log rules-- log 4^k=log 91.8 -- b/c of log rules-- k*log 4=log91.8 --> divide by log 4 k=log 91.8/log 4 k= 3.260

Can anyone solve for x log 4 X plus 16 plus log 4 X plus 4 equals 3?

log4(x) +16 +log4(x) +4=32log4(x)=-17log4(x)=-17/2x=4^(-17/2)=========================Since the parentheses have been lost from the question,it could easily be interpreted this way instead, (as well asa few others):x log(4x) + 16 + log(4x) + 4 = 3(x + 1) log(4x) = -174x = 10-17/(x+1)4x = the (x+1)th root of 10-17Come on back and solve that one for us.

What does log2x2 equal?

Since you did not provide a base for your logarithm there is no particular solution. In most cases it is best to assume it is to the base 10. So the answer would be: log(2*2)=log4 (to the base 10) log4=0.60205.... It is good practice to list the base to which the logarithm is at - normally written as a subscript in the lower right hand corner of the 'log'. The only exception is when the logarithm is to the base e, in which case we write it as ln(x) - where x is a real number. For more information check

A logarithm is an exponent?

Pretty much, yeah. It's just another way of expressing exponents. Say you know the following: (we'll start off easily) 16 = 42 You could also write that as: log4 16 = 2 Algebraically, a = bc so, logb a = c (b is known as the base, so it is read: log base b of a equals c) Also, logb a = (log a) / (log b)

What is the value of x that satisfies the equation 2 log 4 Bracket 7 x Bracket - 5 equals 0 Is - Please show working out?

2log4(7x) - 5 = 0 2log4(7x) = 5 log4(7x) = 5/2 7x = 45/2 =(41/2)5 = 25 = 32 x = 32/7

What is the answer to log4 (3x 5)(x-6)3?

Unfortunately, limitations of the browser used by means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "times", "divided by", "equals", "squared", "cubed" etc. Please use "brackets" (or parentheses) because it is impossible to work out whether x plus y squared is x + y^2 of (x + y)^2.

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