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Mathematics 11 Online
OpenStudy (vuriffy):

Show that the equation: Can be written as a quadratic question in x.

OpenStudy (vuriffy):

\[\log_{2} (x+5) = 5 - \log_{2}x \]

OpenStudy (vuriffy):

@Hayhayz

Hayhayz (hayhayz):

same method

Hayhayz (hayhayz):

x^2+5x-32=0

Hayhayz (hayhayz):

log (x+5) + log(x) = 5 log((x+5)(x)) = 2 x^2+5x=2^5 x^2+5x=32

OpenStudy (vuriffy):

Oh, I get it. That wasn't too bad. X D

Hayhayz (hayhayz):

yes

OpenStudy (vuriffy):

@Hayhayz So, with that answer I can just solve for x, because that's part ii.

Hayhayz (hayhayz):

right

OpenStudy (vuriffy):

Alright, got it sweet!

Hayhayz (hayhayz):

:)

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