Exponents: The base x raised to the power of p is equal to the multiplication of x, p times
xp = x ×x × ... × x( p times)
x is the base and p is the exponent.
Examples
21 = 2
22 = 2 × 2 = 4
23 = 2 × 2 × 2 = 8
24 = 2 × 2 × 2 × 2 = 16, Here 2 is the base and 4 is the exponent.
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Exponents rules and properties
| Rule name |
Rule |
| Multiplication Rule |
xn⋅ xm=xm + n |
| xn⋅yn= (x⋅y)n |
| Division Rule |
xm/xn=xm-n |
| xn/yn= (x/y)n |
| Power Rule |
(xn)m=xn⋅m |
| xnm= x(nm) |
| m√(xn) =xn/m |
| x1/n=n√x |
| |
x-n= 1 /xn |
Must Read Exponents Articles
- Exponents multiplication rules
Multiplication rule with same base
x n ⋅ x m = xm + n
Example:
23 ⋅ 25 = 23+5 = 28 = 2⋅2⋅2⋅2⋅2⋅2⋅2.2 = 256
Multiplication rule with same exponent
xn ⋅ yn = (x ⋅ y)n
Example: 32 ⋅ 22 = (3⋅2)2 = 36
- Exponent & Power division rules
Division rule with same base
xm / x n = xm-n
Example: 35 / 33 = 35-3 = 9
Division rule with same exponent
x n / y n = (x / y) n
Example: 93 / 33 = (9/3)3 = 27
Power rule A
(xn) m =x n⋅m
Example:
(23)2 = 23⋅2 = 26 = 2⋅2⋅2⋅2⋅2⋅2 = 64
Power rule B
Xnm = X(n)m
Example:
232 = 2(32) = 29 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 = 512
Power rule C
x1/n = n√x
Example:
271/3 = 3√27 = 3
Negative power rule
x-n = 1 / xn
Example: 2-2 = 1/22 = 0.25