Question

solve 5^x=18. with steps to show how please

Answer 1

there are in fact no real steps. to solve
\[b^x=A\] for x you go right to the answer
\[x=\frac{\ln(A)}{\ln(b)}\]

Answer 2

the only step is to take out your calculator and find that number. you can also use
\[x=\frac{\log(A)}{\log(b)}\]

Answer 3

oh okay, so there's a formula. thanks a ton!

Answer 4

"log of the total divided by log of the base" some people call this the "change of base" formula but it is just how you solve

Answer 5

yes. and you can "derive" the formula if you like, it is not hard. but if i want to solve

\[5^x=18\] i go right to
\[x=\frac{\ln(18)}{\ln(5)}\]

Answer 6

okay thanks!

Answer 7

yw