## anonymous one year ago 2x^2+15x-38

1. TheSmartOne

2. anonymous

Unsimplify

3. pooja195

Factor?

4. anonymous

Yeah

5. pooja195

|dw:1435793121786:dw|

6. pooja195

$\huge~\rm~2x^2+15x-38$ x=2 b=15 c=-38 $\huge~\rm~2\times-38=?$

7. anonymous

-76

8. anonymous

4 and 15

9. pooja195

Good :) |dw:1435793307274:dw| What numbers multiply to make -76 but add to make 36?

10. anonymous

where did you get 36 from

11. pooja195

?

12. anonymous

you said "What numbers multiply to make -76 but add to make 36? "

13. pooja195

oops hold on

14. anonymous

and I thought we had to find the numbers that multiple to -76 and had a sum of 15

15. pooja195

Oh right >_< im sorry! :( |dw:1435793524098:dw|

16. anonymous

haha its okay, 19 and 4

17. pooja195

19 and 4 are correct BUT it would be -4 :) 19 and -4 now we do some grouping :) $\huge~\rm~(2x^2-4x)+(19x-(-38))$ $\huge~\rm~(2x^2-4x)+(19x+38)$

18. pooja195

find the GCF of each and divide

19. anonymous

divide?

20. anonymous

Ok, I got (2x+19)(x-2)

21. pooja195

Thats correct! :)

22. anonymous

wooo! thanks for the help

23. pooja195

No probs let me know if you need more help ^-^

24. anonymous

Hey, @pooja195 can you actually help me on one more?