Since there's no "equals" sign there ( = ), there's no equation, and nothing to solve yet.
All you have so far is a number. There's no way to determine what the number is
until you know the values of 'x', 'y', and 'z'. If you know those, then the number
is found like this:
-- Calculate or look up the log of 'x'. Triple it, and put that number aside.
-- Calculate or look up the log of 'y'. Put it aside.
-- Calculate or look up the log of 'z'. Double it, and put that number aside.
Now you have three numbers put aside.
-- Add the first and second ones, then subtract the third one.
The result is the complete numerical value of the expression in the question.
hi how you doing is the answer
You can't solve this since it isn't an equation.There is also an ambiguity (it's hard to write math on a typewriter keyboard) - are we talking about log(x3) or maybe logx(3)?Restate the question: Simplify log(x3)Answer: 3log(x)You could explain this by saying: log(x3) = log[(x)(x)(x)] = logx + logx + logx = 3logx. The general rule is log(xn) = nlogx.
It's a logarithmic equation in one unknown.If you'd like to know the value of 'x' that makes it true, you can find it like this:15 log(2.5x) = 100log(2.5x) = 100/15 = 20/3log(2.5) + log(x) = 20/30.39794 + log(x) = 20/3log(x) = 20/3 - 0.39794x = 1020/3 / 100.39794x = 1,856,635.533=============================Check:log(2.5 x 1,856,635.533) = 20/315 (20/3) = 300/3 = 100 yay!
log(5)125 = log(5) 5^(3) = 3log(5) 5 = 3 (1) = 3 Remember for any log base if the coefficient is the same as the base then the answer is '1' Hence log(10)10 = 1 log(a) a = 1 et.seq., You can convert the log base '5' , to log base '10' for ease of the calculator. Log(5)125 = log(10)125/log(10)5 Hence log(5)125 = log(10) 5^(3) / log(10)5 => log(5)125 = 3log(10)5 / log(10)5 Cancel down by 'log(10)5'. Hence log(5)125 = 3 NB one of the factors of 'log' is log(a) a^(n) The index number of 'n' can be moved to be a coefficient of the 'log'. Hence log(a) a^(n) = n*log(a)a Hope that helps!!!!!