Exercise 4 Page 320

The expression (- 2)^6, or - 2 to the sixth power, can be written as the product of six - 2 terms. Note that when multiplying two negative numbers, we obtain a positive number. (- a)(- a) = a* aThis means that any real negative number raised to an even power will result in a positive result.

(- 2)^6

Rewrite

Rewrite (- 2)^6 as (- 2)* (- 2)* (- 2)* (- 2)* (- 2)* (- 2)

(- 2)* (- 2)* (- 2)* (- 2)* (- 2)* (- 2)

MultNegNegTwoPar

(- a)(- b)=a* b

2* 2* 2* 2* 2* 2

Multiply

Multiply

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Using a calculator, we can either enter (- 2)^6 or 2* 2* 2* 2* 2* 2. Both expressions give us the same answer.