This document discusses powers and roots in mathematics. It defines a power as the product of a number multiplied by itself a certain number of times, called the exponent. It provides examples of expressing powers using words and symbols, such as 32 being "three squared". The document notes that powers have properties and will discuss power with negative exponents and powers of ten. It also lists that it will cover square root and cube root.

1. UD. 3 POWERS AND ROOTS - MATHS - 2ºESO
1. POWERS with integer exponents
It is the product of a number many times by itself.
an = b = a  a  a  a  a  ...  a (n - times)
a is the base
n is the exponent
b is the power
For 32
, we can say: Three to the second power. Three to the power of 2. Three
squared. Three raised to the power 2. Three raised to the second
power. Three to the second. Three to two.
For 53
; we can say: Five to the third power. Five cubed....
PROPERTIES of powers

2. UD. 3 POWERS AND ROOTS - MATHS - 2ºESO
And:
Power with negative exponent
Powers of ten

3. UD. 3 POWERS AND ROOTS - MATHS - 2ºESO
2. SQUARE ROOT
2. CUBE ROOT