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# Whole Number Exponents with Integer Bases

Home | Online Math Tutoring | 7th Grade Math Tutoring | Whole Number Exponents with Integer Bases

If b is an integer, and x is a whole number, then

bx = b . b . b . b …… b.

b appears as a factor x times

#### Can the base of an exponent be negative?

The base of an exponent may be negative also. If the exponent is an even integer with a negative base, then the resulting value will be positive as it gets multiplied even number of times.

If the exponent is an odd integer with a negative base, then the resulting value will be negative as it gets multiplied odd number of times.

Let’s see the rules for whole number exponents with integer bases.

Rules for whole number exponents with integer bases

Example: Solve (-4)3

(-4)3 = -4 × -4 × -4 = -64

Example: Solve (-3)4

(-3)4 = -3 × -3 × -3 × -3 = 81

#### Simplify the following:

1. (2)5
2. (-5)4
3. (4)5
4. (-7)3
5. (-9)4
1. 32
2. 625
3. 1024
4. -343
5. -6561

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