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Mathematics 21 Online
OpenStudy (anonymous):

3(5)^2x-3=6

OpenStudy (anonymous):

Please help me, im in a hurry!

OpenStudy (shamil98):

\[\huge 3(5)^{2x-3} = 6\] this?

OpenStudy (shamil98):

hello?

OpenStudy (anonymous):

yes

OpenStudy (shamil98):

\[\huge 5^{2x-3} = 2\] \[\huge 2x-3 =\frac{ \log 2 }{ \log5 }\] can you simplify it from here

OpenStudy (anonymous):

ill try, i dont really know. I missed class and the teacher wouldn't help.

OpenStudy (shamil98):

You could also do this \[\huge 2x-3 = \frac{ \ln2 }{ \ln 5 }\]

OpenStudy (anonymous):

2x=log2/log5-3?

OpenStudy (shamil98):

no.. -3 on the left side becomes positive 3 on the other.

OpenStudy (shamil98):

\[\huge 2x = 0.43 + 3 \] \[\huge x \approx 1.715\]

OpenStudy (shamil98):

ln2/ln5 = 0.4306765580733930506701065687639656320697919320797603 i just used the hundreth place.

OpenStudy (anonymous):

ok, Thank you so much! @shamil98

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