marcelie
  • marcelie
help please !!!! f(x) = 4x + 7, g(x) = 2x2 Find (fg)(x).
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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helpsos
  • helpsos
Substitute for f and g so you should have (fg)(x) = (4x + 7) (2x * 2)
helpsos
  • helpsos
do you know how to multiply these two equations?
helpsos
  • helpsos
Also, is g(x) equal to 2x*2?? Because that can be simplified to 4x

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marcelie
  • marcelie
no.
marcelie
  • marcelie
so then the g(x) goes inside the 4(...)^2 +7
marcelie
  • marcelie
|dw:1449383006374:dw|
helpsos
  • helpsos
You would only out the g(x) inside the f(x) if the equation was a follows: f o g (x) But this equation simply requires that you multiply f(x) and g(x) which is : (4x + 7) (2x * 2)
helpsos
  • helpsos
I mean to say "you would only PUT the..."
marcelie
  • marcelie
so is that the correct form ? how i did it
helpsos
  • helpsos
No, you would write it as (4x + 7) (2x * 2) :)
helpsos
  • helpsos
Can you please draw the question for me so that I may see clearly what the equation is
marcelie
  • marcelie
|dw:1449383258726:dw|
helpsos
  • helpsos
|dw:1449383371960:dw|
helpsos
  • helpsos
are you in grade 12?
helpsos
  • helpsos
The equation you were giving me would be right IF the question was as follows |dw:1449383529934:dw|
helpsos
  • helpsos
Does that make sense?
marcelie
  • marcelie
yes :) ty
helpsos
  • helpsos
np :D

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