## joemarie Group Title hi what is the factor of 2x^2-3x-9? 2 years ago 2 years ago

1. lgbasallote Group Title

2x^2 - 3x - 9 break down the middle term 2x^2 + 6x - 3x - 9 group them (2x^2 + 6x) - (3x + 9) factor out 2x(x + 3) - 3(x+3) do you see it now?

$x^2-3x-9=0$ $x^2-6x+3x-9=0$ $2x(x-3)+3(x-3)=0$ now you try to simplify.

3. annas Group Title

you can use the quadratic formula i.e $-b \pm \sqrt{b ^{2}-4ac}/2a$ here a=2 b=-3 c=-9 put the values of a, b and c in equation and you'll get your answer

4. joemarie Group Title

thanks for helping me

5. joemarie Group Title

factor of 2x+8

6. abano Group Title

28X+7

we have to make the first term of these sums.

8. abano Group Title

I CANNOT SOLVE THAT ONE

wait i am doing.

10. joemarie Group Title

hi what is the factor of 8x^3-216

11. abano Group Title

2x+342

$First Term= (Middle Term)^2/4*(Last Term)$

13. joemarie Group Title

thanks,but im not asking what is the procedure im asking is what is the solution?

14. abano Group Title

kantutan

15. joemarie Group Title

gago ka talaga

16. joemarie Group Title

oo nga pala tuloy ung sa e nglish

17. joemarie Group Title

tar a abano Joke :D

factor of 8x^3-216 $8x(x^2-27)=0$ $8x=0$ $x=0$ or $x^2-27=0$ $x^2=27$ $x=\sqrt{27}$

19. joemarie Group Title

abano add mo ko sa fwend m!!

20. danny_dumond Group Title

(x-6)(x+3)

21. Wired Group Title

@danny_dumond Please don't post only answers as that's against the Code of Conduct: http://openstudy.com/code-of-conduct

22. timo86m Group Title

well find something like (cx+a) (dx+b) to = 2x^2-3x-9

23. danny_dumond Group Title

Gosh sorry! :P