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Mathematics 19 Online
OpenStudy (anonymous):

solve 8^x+2=32^2x+4

OpenStudy (anonymous):

\[8^{x+2}=32^{2x+4}\] is that the equation?

OpenStudy (anonymous):

or \[8^x+2=32^{2x}+4\]

OpenStudy (anonymous):

the first one is the equation

OpenStudy (anonymous):

help

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

first get a common base

OpenStudy (anonymous):

im listening

OpenStudy (anonymous):

so 8 to the (x+2) power is also 2^3(3+2) and 32^(2x+4)=2^5(2x+4) now just get rid of the twos on each side and u have 3(x+2)=5(2x+4) =3x+6=10x+20=7x=-14 x=-2

OpenStudy (anonymous):

OMG thank you

OpenStudy (anonymous):

ur welcome

OpenStudy (anonymous):

heres another question:express log9 22in terms of common logarithms

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