SOLUTION: Please help. I can not figure out how to do these. Thank you in advance! Multiply. 1. n squared +5n+4 OVER 2n squared+2n MULTIPLIED BY n squared-n-12 OVER n squared-16.

Question 117491: Please help. I can not figure out how to do these. Thank you in advance!
Multiply.
1.
n squared +5n+4 OVER 2n squared+2n MULTIPLIED BY n squared-n-12 OVER n squared-16.

2.
3pq to the 3rd power OVER 5 DIVIDED BY 9p squared q squared OVER 10
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given expression

Factor to get

Factor to get

Factor to get

Factor to get

Combine the fractions

Cancel like terms

Simplify

So simplifies to

In other words,

Start with the given expression

Combine the fractions by multiplying

Remember when you divide monomials, you subtract their corresponding exponents. For instance

Simplify. Remember to reduce the coefficients (which are numbers in front of the variables) to get .

Rewrite as

--------------------------------------------
Answer:

So simplifies to .

In other words, .
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