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Intermediate Algebra
Answer/Discussion to Practice Problems
on Multiplying Polynomials


 

Answer/Discussion to 1a

 

*Dist. -5x
*Mult. like bases add exp.

 
(return to problem 1a)

 


 

Answer/Discussion to 1b

 

 
 

*Use the FOIL method

*Combine like terms

 
(return to problem 1b)

 


 

Answer/Discussion to 1c

 

*

 
(return to problem 1c)

 
 


 

Answer/Discussion to 1d

 
*
*

*Dist. -1
*Write in desc. order
 

 
(return to problem 1d)

 
 


 

Answer/Discussion to 1e

 
*Use Dist. Prop. twice

*Combine like terms

 
(return to problem 1e)

 

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Last revised on Jan. 7, 2002 by Kim Seward.