## anonymous one year ago 5. Multiply 9x^2(2x^2 + 8x). A) 18x^4 + 72^3 B) 18x^2 + 72x^3 C) 11x^4 = 17x^3 D) 90x^4

1. anonymous

I need help with this one as well 6. Factor the following polynomial completely: 30y^6 + 25y^5 - 10y^4. A) 10y^4 (3y^2 + 2y - 1) B) 5y (6y^4 + 5y^3 - 2y^2) C) 5 (6y^6 + 5y^5 - 2y^4) D) 5y^4 (6y^2 + 5y - 2)

2. anonymous

if you distribute the 9x^2 you'll get 9x^2*2x^2 + 9x^2*8x

3. Directrix

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4. Directrix

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5. Directrix

@Answers101 What is the answer in multiplying 9 * 2 * x^2 * x^2 ?

6. anonymous

@Directrix 18x^4 + 72x^3

7. Directrix

I think so. Just a second.

8. Directrix

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9. anonymous

@Directrix Thanks :)

10. Directrix

11. Directrix

12. anonymous

@Directrix Yes I got D

13. anonymous

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14. Directrix

Option D is what I got after I factored out the common monomial factor. What was left, (6y^2 + 5y -2) did not factor over the set of integers.

15. Directrix

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16. Directrix

At first, I thought it was a 3. D) 5y^4 (6y^2 + 5y - 2)

17. anonymous

Yeah I know it looks like a 3 I meant for it to look like a -2