need algebra help quick 4

1. Determine the prime factorization of 90.

 
 

Question 2.2. Find the GCF of the terms of the polynomial.

24x4y + 21x3 

 
 

Question 3.3. Simplify.

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3
mn
2

 
 

Question 4.4. Divide. (10a4 â€“ 5a3) ÷ 5a

 
 

Question 5.5. Determine whether the polynomial is a perfect square and if it is, factor it.

n2 â€“ 6n + 9

(Points : 4)

 
 

Question 6.6. Determine whether the polynomial is a difference of squares, if it is, factor it.

y2 â€“ 9