answersLogoWhite

0

2logx-log5=-2

logx^2-log5=-2

log(x^2 / 5)=-2

x^2 / 5 = 10^-2

x^2=5(1/100)

x^2=1/20

x=√(1/20)

User Avatar

Wiki User

13y ago

What else can I help you with?

Continue Learning about Algebra

Why is the answer for log x squared equals 2 different than 2log x equals 2?

log x2 = 2 is the same as 2 log x = 2 (from the properties of logarithms), and this is true for x = 10, because log x2 = 2 2 log x = 2 log x = 1 log10 x = 1 x = 101 x = 10 (check)


How do you solve 2logx plus 3logx equals 10?

2 log(x) + 3 log(x) = 105 log(x) = 10log(x) = 10/5 = 210log(x) = (10)2x = 100


If 2 raised to the x equals 10 then what is x?

X is the log(to the base 2) of 10 = 3.324(rounded)


What is x if log x equals -3?

If the log of x equals -3 then x = 10-3 or 0.001or 1/1000.


How do I solve the equation e to the power of x equals 2 using logarithms?

When the logarithm is taken of any number to a power the result is that power times the log of the number; so taking logs of both sides gives: e^x = 2 → log(e^x) = log 2 → x log e = log 2 Dividing both sides by log e gives: x = (log 2)/(log e) The value of the logarithm of the base when taken to that base is 1. The logarithms can be taken to any base you like, however, if the base is e (natural logs, written as ln), then ln e = 1 which gives x = (ln 2)/1 = ln 2 This is in fact the definition of a logarithm: the logarithm to a specific base of a number is the power of the base which equals that number. In this case ln 2 is the number x such that e^x = 2. ---------------------------------------------------- This also means that you can calculate logs to any base if you can find logs to a specific base: log (b^x) = y → x log b = log y → x = (log y)/(log b) In other words, the log of a number to a given base, is the log of that number using any [second] base you like divided by the log of the base to the same [second] base. eg log₂ 8 = ln 8 / ln 2 = 2.7094... / 0.6931... = 3 since log₂ 8 = 3 it means 2³ = 8 (which is true).

Related Questions

How do you solve log base 2 of x - 3 log base 2 of 5 equals 2 log base 2 of 10?

[log2 (x - 3)](log2 5) = 2log2 10 log2 (x - 3) = 2log2 10/log2 5 log2 (x - 3) = 2(log 10/log 2)/(log5/log 2) log2 (x - 3) = 2(log 10/log 5) log2 (x - 3) = 2(1/log 5) log2 (x - 3) = 2/log 5 x - 3 = 22/log x = 3 + 22/log 5


What is x when 5 raised to the x-2 equals 70?

5x-2 = 70 ⇒ (x-2) log 5 = log 70 ⇒ x = log 70/log 5 + 2 ≈ 4.640 (You can use any base you like for the logs, as long as you use the same base for both of them.)


Why is the answer for log x squared equals 2 different than 2log x equals 2?

log x2 = 2 is the same as 2 log x = 2 (from the properties of logarithms), and this is true for x = 10, because log x2 = 2 2 log x = 2 log x = 1 log10 x = 1 x = 101 x = 10 (check)


Log x plus log 2 equals log 2?

log(x) + log(2) = log(2)Subtract log(2) from each side:log(x) = 0x = 100 = 1


Does 5 equals log 5 to the x have an asymptote?

no


How do you solve 2logx plus 3logx equals 10?

2 log(x) + 3 log(x) = 105 log(x) = 10log(x) = 10/5 = 210log(x) = (10)2x = 100


How would you rewrite 7 to the power of x equals 5?

7x = 5x log(7) = log(5)x = log(5) / (log(7) = 0.82709 (rounded)


What s the G of x if it equals log 2 x plus 2?

G(x) = log(2x) + 2, obviously!


How do you solve log x plus 2 equals log 9?

log x + 2 = log 9 log x - log 9 = -2 log (x/9) = -2 x/9 = 10^(-2) x/9 = 1/10^2 x/9 = 1/100 x= 9/100 x=.09


What is 6255 to the power 2 5 to the power of?

6225^2=5^x 38,750,625=5^x log(38,750,625)=xlog(5) log(38,750,625)/log(5)=x x is approximately 10.856


Can anyone give an explanation and an answer to the following Find x -0.3 plus 5-5logd equals a plus 5-5log4d?

The explanation and answer to the following math equation to find x -0.3 plus 5-5 log (d) equals a plus 5-5 log 4 (d) is -5 log(d)+x+4.7 = a-5 log(4 d)+5. The solution is x = a-6.63147.


How do you solve for X in Log x plus 9 - Log x equals 2?

11