kaylaprincess
  • kaylaprincess
Let f(x)=3 and g(x)=6x+4. Find f(x)+g(x) Can someone please walk me through this?
Mathematics
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SOLVED
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katieb
  • katieb
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Nnesha
  • Nnesha
add \[\huge\rm \color{ReD}{f(x)} +\color{blue}{g(x)}\] f(x) =3 so replace f(x) by 3 and g(x) by 6x+4 last and f!nal step combine like terms
kaylaprincess
  • kaylaprincess
so, 3 + 6x + 4
Nnesha
  • Nnesha
yep right!

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kaylaprincess
  • kaylaprincess
6x + 7 !
kaylaprincess
  • kaylaprincess
duh i was over thinking this. thank you !
Nnesha
  • Nnesha
yep right
Nnesha
  • Nnesha
my pleasure :=)
kaylaprincess
  • kaylaprincess
may i ask another question? just to check my answer? ( this is for practice, not a text or quiz )
kaylaprincess
  • kaylaprincess
test *
kaylaprincess
  • kaylaprincess
@Nnesha
Nnesha
  • Nnesha
sure
kaylaprincess
  • kaylaprincess
Let f(x)=−9x+7 and g(x)=x−13. Find f(x)−g(x) I get -10x - 6 what am i doing wrong?
Nnesha
  • Nnesha
alright okay so there is a negative sign first step is to distribute 2nd parentheses by negative one
kaylaprincess
  • kaylaprincess
but it's not multiplication?
Nnesha
  • Nnesha
\[\huge\rm (−9x+7) -(x−13 )\] we need to put parentheses bec of negative sign
Nnesha
  • Nnesha
so that's why first step is to distribute!
kaylaprincess
  • kaylaprincess
ohhhhh
kaylaprincess
  • kaylaprincess
i see i see. thank you ~
Nnesha
  • Nnesha
np
kaylaprincess
  • kaylaprincess
for some reason openstudy wont let me ask questions it's weird. did they make a certain number of questions you can ask?
Nnesha
  • Nnesha
no you can more than 100 questions

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