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Simplify the expression (5r - 7)(9r^2-4r-8)

Simplify the expression (5r - 7)(9r^2-4r-8)-example-1
User Syedsma
by
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1 Answer

4 votes

For this problem, you will need to foil. Multiply each term in the first expression (5r-7) by each term in the second expression (9r^2-4r-8)

When we foil, we get:


45r^3-20r^2-40r-63r^2+28r+56

Combine like terms:


45r^3-83r^2-12r+56

This is your final answer since you can do nothing further to simplify.

User StanleyH
by
7.8k points
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