anonymous
  • anonymous
Help please? Let f(x) =x+7 and g(x) =x–2. What is f(x)•g(x)?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
\[A. x ^{2}-5x+14\]
anonymous
  • anonymous
\[B. x ^{2}+5x-14\]
Goten77
  • Goten77
|dw:1361917120837:dw|

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More answers

anonymous
  • anonymous
If f(x) =x+7 and g(x) =x–2 then f(x)•g(x) = (x+7)(x-2) Do FOIL or box method.
anonymous
  • anonymous
\[C. x ^{2}+5x-5\]
anonymous
  • anonymous
\[D. x ^{2}+9x+5\]
anonymous
  • anonymous
What does (x+7)(x-2) equal?
Goten77
  • Goten77
if those are you only multiple choices then just by looking at them we can decide which 1 is the only possible answer.... look at the ending constant
anonymous
  • anonymous
\[(x+7)(x-2)= x ^{2}-2x+7x-14=x ^{2}+5x-14\]
anonymous
  • anonymous
I got x^2+5x-14
anonymous
  • anonymous
Well done!
anonymous
  • anonymous
Thanks!
radar
  • radar
Understand "composite" functions. This is more than just FOIL
radar
  • radar
|dw:1361917642289:dw|
anonymous
  • anonymous
@radar Read her question again, it asks for f(x)•g(x), not (f o g)(x)
radar
  • radar
|dw:1361917795737:dw|
radar
  • radar
OH, since it was such a large "dot" I thought maybe it was "composite" "FOILed again" lol
anonymous
  • anonymous
haha
radar
  • radar
Sorry about that @P.nut1996 stick with RD42
anonymous
  • anonymous
Thank you so much guys! Very helpful! :D

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