Question

Am I correct: I got 3.96240625 which is 3.9624

Answer 1

how did you get that answer ?
did you apply change of base formula ?? :-)

Answer 2

yes.. but i dont understand

Answer 3

bec there are two method to solve exponential equation

Answer 4

okay what's the change of base formula ?

Answer 5

ln(4z)=ln(243)

Answer 6

zln(4)=ln(243)

Answer 7

2zln(2)=ln(243)

Answer 8

okay so you can divide both side by ln 4

Answer 9

hmm 2 ??

Answer 10

2zln(2)=1(5ln(3))

Answer 11

no 2?

Answer 12

change of base formula
\[\huge\rm log_a b = \frac{ \log b }{ \log a }\]
that's it

Answer 13

z=5ln(3)//////////2ln(2)

Answer 14

how did you get 5 ?
z= 5ln(3)
^ ?

Answer 15

here: The left-hand side of the equation is equal to the exponent of the logarithm argument because the base of the logarithm equals the base of the argument.
zln(4)=ln(243)

Answer 16

first of all change to log form