Confusing Question!

M

mthcs

New member
Joined
Feb 12, 2012
Messages
17
I have a question on my homework that says: Convert the following equation to its equivalent exponential form.

For........ Log(base 7)(x+74)=2

It tells me to first "Enter your answers so an expression with is on the left-hand side and a single number is on the right-hand side (don't solve yet)."

And then to solve for x.

Thanks in advance!
 
mthcs said:
I have a question on my homework that says: Convert the following equation to its equivalent exponential form.

For........ Log(base 7)(x+74)=2

It tells me to first "Enter your answers so an expression with is on the left-hand side and a single number is on the right-hand side (don't solve yet)."

And then to solve for x.

Thanks in advance!
Click to expand...

Did you ever learn this little diddy?

log(base b)Y = x is equivalent to b^x = Y
 
When you find the log of a number, that answer is an exponent such that if you take the base of the log and raise it to that answer you got, then it would equal the number that you are taking the log of. A simple example my clear this up:

Log(base2)8 = 3 because 2^3 = 8. Does that make sense.

So in your problem, 7^2 = x + 74

Now solve for x and then check your answer to make sure it is not extraneous.
 
You must log in or register to reply here.
Top