## anonymous one year ago Combine like terms. (-3y^2 - 7y - 9) - (4y^2 + 6y + 9)

1. anonymous

2. Oleg3321

come on this is easy

3. anonymous

HELP ME LEARN! :p

4. Oleg3321

ok so all you do it combine all these numbers and you are left with -7y^2-13y-18

5. Oleg3321

@SurpriseBreeze does that help?

6. pooja195

@oleg3321 you gave the answer congrats.

7. Oleg3321

i told him you have to add the numbers and then you get that answer

8. anonymous

Oh wow that was easy! :D Thanks haha

9. pooja195

@oleg3321 you didnt even tell the asker they need to distribute

10. Oleg3321

idk do i have to show him how to add? ok next time ill show people how to do kindergarden math lol @pooja195 ok next time ill get into more detail

11. pooja195

Want me to show you how to explain?

12. Oleg3321

ya sure lol

13. pooja195

Ok so we fisr notice that theres a - sign in between the 2 parehteses therefore we need to distrubite theres no varible there so we assume its 1 $$\huge\rm\color{red}{-}(4y^2+6y+9)$$ We distribute and bascially the signs slip we end up with $$\huge\rm\color{red}{-4y^2-6y-9}$$

14. pooja195

From there we combine like terms $\huge~\rm~-3y^2 - 7y - 9−4y^2−6y−9$

15. Oleg3321

so much explaining just for distabution? wow

16. Oleg3321

ok will try to do more explaing next time

17. pooja195

$$\huge\rm\color{red}{-3y^2-4y^2=?}$$ $$\huge\rm\color{purple}{-7y-6y=?}$$ $$\huge\rm\color{teal}{-9-9=?}$$

18. pooja195

@oleg3321 its called learning and explaining. Here on OpenStudy we do not give direct answers.

19. Oleg3321

ok cool :)

20. pooja195

And once we are done the asker should be able to solve this. :)