Ask your own question, for FREE!
Mathematics 11 Online
OpenStudy (anonymous):

8^(y-2) =2y

OpenStudy (anonymous):

take log to both sides :)

OpenStudy (anonymous):

yeah thats it by taking log we will have (y-2)log8=log2+logy is it right ??? @Eyad

OpenStudy (anonymous):

y= -1?

OpenStudy (anonymous):

yes @annas thats right :)

OpenStudy (anonymous):

is it maybe \[8^{y-2} =2^y\]??

OpenStudy (anonymous):

okey dokey @Eyad

OpenStudy (anonymous):

xD @annas.

OpenStudy (anonymous):

yea satellite thats the equation

OpenStudy (anonymous):

that would make life a lot easier. if it is \[8^{y-2}=2^y\] then since \(8=2^3\) you get \[2^{3y-6}=2^y\]making \[3y-6=y\] and then you can solve for y easily

OpenStudy (anonymous):

2power y??? @tmest1992

OpenStudy (anonymous):

you get \[3y-6=y\] \[2y=6\] \[y=3\]

OpenStudy (anonymous):

gimmick is to write both sides with the same base

OpenStudy (anonymous):

no the only power is (y-2)

OpenStudy (anonymous):

ok if there is no power on 2 then it will be done by log method

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!