## anonymous one year ago An expression is shown below: 2x3y + 18xy − 10x2y − 90y Part A: Rewrite the expression so that the GCF is factored completely. (4 points) Part B: Rewrite the expression completely factored. Show the steps of your work. (6 points)

1. anonymous

can anyone give me the answer

2. anonymous

@welshfella @Vocaloid

3. anonymous

@Nnesha

4. jdoe0001

hmm what's a GCF?

5. anonymous

greatest common factor

6. jdoe0001

$$\bf 2x^3y+18xy-10x^2y-90y$$ <---see any here

7. anonymous

2

8. jdoe0001

so... let us take it out then :) what do you end up with?

9. anonymous

2y(x−5)(x2+9)

10. jdoe0001

well... hmm to be exact.. notice, all terms have a "y" as well, so 2y

11. jdoe0001

hmmm how... did you get 2y(x−5)(x2+9)?

12. anonymous

srry i just used mathway

13. jdoe0001

hmm ok... did the instructions on the exercise said you meant to use mathway and write down the output?

14. anonymous

i just wrote the equation

15. anonymous

an u just ell me the answer for A plz

16. anonymous

really have to get this done

17. jdoe0001

so... take the GCF and see what you end up with :)

18. anonymous

idk

19. anonymous

help plz

20. jdoe0001

$$\bf 2x^3y+18xy-10x^2y-90y\implies {\color{blue}{ 2}}x^3{\color{blue}{ y}}+{\color{blue}{ 2}}\cdot 9x{\color{blue}{ y}}-{\color{blue}{ 2}}\cdot 5x^2{\color{blue}{ y}}-{\color{blue}{ 2}}\cdot 45{\color{blue}{ y}}$$ so.. .take out the GCF... and see what's left

21. anonymous

ohhh ok