Simplifying Exponential Expression Lab

 

Name:  ______________________________                        Date:  __________________

 

        Remember: Anything except 0 raised to the zero power is 1

                        Examples

 

 

1.  Simplify: 

 

            a.                           b.                          c.                         d. 

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2.  Simplify: 

 

            a.                  b.                        c.                      d. 

 

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3.  Simplify: 

 

            a.                           b.                       c.                        d. 

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4.  Simplify: 

 

            a.                       b.                        c.                         d.        

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5.  Simplify: 

 

            a.                      b.                       c.                          d. 

 

 

Answers to Simplifying Exponential Expressions Lab

 

1.  Answer:  B 

 

To raise an exponential expression to a power, keep the base and multiply the exponents.

To make the exponent positive, take the reciprocal of the expression.

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2.  Answer:  C

 

Raise each term to the power of 6: 

=

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3.  Answer:  D

=

 

Raise each term to the power of -3

 

 

 and combine the c’s.  One way is make them both positive by taking the reciprocals of each c.

 

 

4.  Answer:  B

 

=

 

Combine the a’s, b’s, and c’s.  One way to combine the c’s is to first make them positive by taking their reciprocals.

 

 

You can picture what is occurring if you expand the expression without the exponents.

 

=

 

Remember that or any term divided by the same term equals 1, so if you simplify this expression using this fact.

 

=  because of the commutative property of multiplication.

 

There are other ways of doing this problem.  For example, you can use your product, quotient, and power rules for exponents.

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5.  Answer:  C

=

 

 

 

Use the power rule for exponents to raise each term to -3, multiplying each exponent by

-3.