## anonymous 3 years ago Factor the following trinomial. w18 – 9w9y5 + 14y10

1. anonymous

Ummm where's the exponenets

2. anonymous

18, 9,5,10

3. anonymous

$w ^{18}-9w ^{9}y ^{5}+14y ^{10}$ Does it look like this?

4. anonymous

yes

5. anonymous

@Calcmathlete I think you'd be better at this than me :)

6. anonymous

Find factors of 14 that add up to -9.

7. anonymous

idk that's why i'm asking for help

8. anonymous

so it would be -2 and -7

9. anonymous

Ok. Even though it looks a lot different, it is still a factorable trinomial. $w ^{18}-9w ^{9}y ^{5}+14y ^{10} \implies (w^9 - 2y^5)(w^9 - 7y^5)$

10. anonymous

Remember. THese are exponents. $w^9 \times w^9 = w^{9 + 9} = w^{18}$

11. anonymous

so would that be the answer?

12. anonymous

$w ^{18}-9w ^{9}y ^{5}+14y ^{10} \implies (w^9 - 2y^5)(w^9 - 7y^5)$ The one on the right is the answer.

13. anonymous

thank you so much you guys!

14. anonymous

np :)