anonymous
  • anonymous
f(x) = 4x - 7, g(x) = 6x + 8 ... find (fg)(x) (my answer is 24x^2-10x-56 ... does this look right?)
Mathematics
  • Stacey Warren - Expert brainly.com
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chestercat
  • chestercat
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anonymous
  • anonymous
yes
anonymous
  • anonymous
Actually, not quite, f(g(x))=4(6x+8)-7=24x+32-7=24x+25
anonymous
  • anonymous
or were you looking for f(x)*g(x)?

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anonymous
  • anonymous
the problem is written as find (fg)(x)
anonymous
  • anonymous
That usually means f(g(x)), but notation does sometimes vary..
anonymous
  • anonymous
no it doesnt
anonymous
  • anonymous
f(g(x)) is written like that, f(g(x))
anonymous
  • anonymous
or I have seen (f o g) (x)
anonymous
  • anonymous
Actually, you will find that I am right, I am a statistics and economics major at UC Berkeley. Check this article to verify: http://www.ehow.com/how_5203413_fgx.html :)
anonymous
  • anonymous
wrong noob cake (fg)(x) is the product of two functions notation , you idiot
anonymous
  • anonymous
and fg (X) would never be written as multiplication would it?
anonymous
  • anonymous
:| the stupidity and you are meant to be smart
anonymous
  • anonymous
I know, why don't you troll a bit and throw insults at people randomly because they can't see you or reply to your face. People show no respect on the internet.. we are both trying to help someone, can't you see that and put petty insults aside? I think the notation is unclear: here is another topic where people are discussing the same issue: http://www.physicsforums.com/showthread.php?t=237718
anonymous
  • anonymous
@techcrew: I would ask your teacher, and maybe put both answers :)
anonymous
  • anonymous
there is a difference between fg(x) and (fg)(x) , god, are u blind ? mr stats major, do you know what brackets mean?
anonymous
  • anonymous
jesus, math students are so stupid
anonymous
  • anonymous
the answers all are polynomials...it is multiple choice. they are all squared so i think it would be fx*gx
anonymous
  • anonymous
well that simplifies it.
anonymous
  • anonymous
lols man , confirmed my theory, math students are completely useless :P . Seriously some of guys lack common sense, you can do all your pure maths which has no applications to society but you cant even apply common sense lol
anonymous
  • anonymous
whoa, you got a math degree, big deal , I am second year engineering student ( probably done like 1/10 of the amount of maths you have ) and I have more common snese than you

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