Question

Solve. 8^x – 2 = 3

Answer 1

x=0

Answer 2

\[\Large x - 2 = \log_8 3\]Solve using a calc.

Answer 3

lol your calculator has log base 8 on it??

Answer 4

\[8^{x-2}=3\]
\[x-2=\frac{\ln(3)}{\ln(8)}\]
\[x=\frac{\ln(3)}{\ln(8)}+2\] now use a calculator

Answer 5

my choices are x ≈ 2.52
x ≈ 0.26
x ≈ 2.74
x ≈ 0.40

Answer 6

1st one

Answer 7

http://www.wolframalpha.com/input/?i=ln%283%29%2Fln%288%29%2B2

Answer 8

x ≈ 2.52

Answer 9

looks like about 2.52

Answer 10

well if you round should be 2.53, but close enough

Answer 11

my calc has base 8. :D

Answer 12

@saifoo.khan Me too :D

Answer 13

Which calc do u have?

Answer 14

fx-991ES

Answer 15

i have the same one! :D
(but without solar panel)

Answer 16

oh

Answer 17

;)