## itsjustme_lol Group Title please one year ago one year ago

1. itsjustme_lol

Let f(x) = x + 7 and g(x) = x – 2. What is f(x) • g(x)?

2. Azteck

You're told f(x)= x+7. That means that x+7 is the same as f(x). Same goes for g(x). So when they're asking you to multiply f(x) with g(x), what would you replace as f(x) and g(x)?

3. itsjustme_lol

7 and -2?

4. Azteck

Is 7 the same as f(x). What did I say is equal to f(x)?

5. itsjustme_lol

x+7

6. Azteck

So what would you replace as f(x)?

7. itsjustme_lol

x+7? or 7x?

8. Azteck

where'd you get 7x from?

9. Azteck

Math is all about being realistic. If you did't know where you got 7x, then why would you even bring it out into thin air?

10. Azteck

didn't*

11. Azteck

x+7 is correct.

12. Azteck

What would you replace g(x) then?

13. itsjustme_lol

x-2

14. itsjustme_lol

and sorry..im really horrible at math so i honestly didnt know...goodness lol

15. Azteck

Okay that's correct though even if you're horriblea t math. You got it.

16. Azteck

horrible at*

17. Azteck

so then using what you just knew about f(x) and g(x): $f(x)\times g(x)=?$

18. itsjustme_lol

-14?

19. Azteck

You didn't say anything about -14 beforehand, why now?

20. Azteck

I'm just asking you to repeat what you said last time about what f(x) and g(x) is.

21. itsjustme_lol

well because idk why i didnt..

22. itsjustme_lol

ok, that make sense i think. ok so if i got this right my answer would be x^2 + 5x – 14

23. Azteck

Wowza, That's awesome! See, if you're actually thinking straight, you can do amazing things. That's absolutely correct!

24. itsjustme_lol

why thank you :)