Question

could somebody please check my answer,
log3 9x^4 - log3(3x)^2

=log3 9x^2
=2log3 9x

Answer 1

\[\large{\log_3{\frac{9x^4}{9x^2}}}\]\[=\large{\log_3}{x^2}=2\log_3x\]

Answer 2

you forgot to cancel out the 9

Answer 3

why book gives the answer 0

Answer 4

oh then the question might be (3x^2)^2?

Answer 5

coz if it was (3x^2)^2
then the answer will be log3 1^2 = 2log3 1 = 0

Answer 6

log3 9x4 − log3(3x)2 copied and pasted straight from the worksheet

Answer 7

its either thers something wrong with the question, or the aswer given to u is wrong,
the only way it can be zero is when (3x^2)^2
but in this case its 2log3 x

Answer 8

thanks sensei

Answer 9

your welcome:D