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Algebra

Chapter 19

Problem 2

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The product of an even number of negative real numbers is positive.
The product of an odd number of negative real numbers is negative.

(a) The product (- )(- )(- )(- )(- )(- )(- )( ) =

(b) Thus, the product of 7 negative numbers
      and 1 positive numbers is (negative/positive).


Example:

The product of (1)(-2)(3)(-4)(5)(-6) = -720
Note: The product of an odd number (3) of negative numbers is negative.

To solve this using the graphics calculator at the bottom of this page,
enter (1)(-2)(3)(-4)(5)(-6) in the box to the right of Function f(x)=,
then click on the Plot Graph button.
The answer will appear as f(x) = -720 below the box.