## kaylaprincess one year ago Let f(x)=3 and g(x)=6x+4. Find f(x)+g(x) Can someone please walk me through this?

1. 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

2. kaylaprincess

so, 3 + 6x + 4

3. Nnesha

yep right!

4. kaylaprincess

6x + 7 !

5. kaylaprincess

duh i was over thinking this. thank you !

6. Nnesha

yep right

7. Nnesha

my pleasure :=)

8. kaylaprincess

may i ask another question? just to check my answer? ( this is for practice, not a text or quiz )

9. kaylaprincess

test *

10. kaylaprincess

@Nnesha

11. Nnesha

sure

12. 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?

13. Nnesha

alright okay so there is a negative sign first step is to distribute 2nd parentheses by negative one

14. kaylaprincess

but it's not multiplication?

15. Nnesha

$\huge\rm (−9x+7) -(x−13 )$ we need to put parentheses bec of negative sign

16. Nnesha

so that's why first step is to distribute!

17. kaylaprincess

ohhhhh

18. kaylaprincess

i see i see. thank you ~

19. Nnesha

np

20. kaylaprincess

for some reason openstudy wont let me ask questions it's weird. did they make a certain number of questions you can ask?

21. Nnesha

no you can more than 100 questions