Question

Solving the equation Log5 (3x-15) = log5 (5x - 23) for x gives you x =


A) 12/15
B) 4
C) 5
D) 12
E) None of the above

Answer 1

E none of the above

Answer 2

x=4 is not a soulution

Answer 3

If anything, you can try 4, haha :-).

Answer 4

But I would guess you only have a chance in your exam, right?

Answer 5

yea only one chance. One wrong wont hurt I guess.

Answer 6

Yeah, it's up to you. It's x = 4 if it's in the complex plane, undefined otherwise.

Answer 7

when you solve the equation you get x = 4 but x can't be 4 because then you have a negative argument so choose E.

Answer 8

yay! it was E!

Answer 9

I know.
Glad you got it right.

Answer 10

thanks once again you guys are awesome...um yea lol

Answer 11

yw