+0  
 
0
47
4
avatar+35 

f(g(4))

f(x)=x^2+x

G(x)=3x+1

 Sep 20, 2020
 #1
avatar+246 
+1

Just plug in again using the strategy I JUST showed you:

 

\(g(4)=3(4)+1 = \mathbf{13}\\\\\implies f(13)=13^2+13\implies169+13\implies \color {blue}{\mathbf{\boxed {182}}}\)

 Sep 20, 2020
 #2
avatar+35 
+1

sorry man i know  and i did so i was about to come back say nvm but yea thanks man...

maximusaurelius117  Sep 20, 2020
 #3
avatar+246 
+1

Oh, sorry about being rash about it.

Nacirema  Sep 20, 2020
 #4
avatar+35 
0

its ok man i needed that anyways.keeps me on track.

maximusaurelius117  Sep 21, 2020

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