. . . THE EVEN AND ODD NUMBERS LISTED ARE ALSO EXAM-PLES OF CONSEC...

13, . . . The even and odd numbers listed are also exam-

ples of consecutive even numbers and consecutive odd

Integer and Rational Exponents

numbers because they differ by two.

Here are some helpful rules for how even and

Integer Exponents

odd numbers behave when added or multiplied:

When dealing with negative exponents, remember that

a –n = a 1

n

.

even + even = even and even × even = even

odd + odd = even and odd × odd = odd

Examples:

odd + even = odd and even × odd = even

4 –2 = 4 1

2

= 1 1 6

–2 –3 = 1 2

3

= 1 8 = – 1 8

Dividing by Zero

Dividing by zero is not possible. This is important to

Rational Exponents

remember when solving for a variable in the denomi-

Recall that rational numbers are all numbers that can

nator of a fraction.

be written as fractions ( 2