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The third power is called power, and what is the second power?
Also called power, no matter how many times it is called power.

Generally speaking, in mathematics, we write the product of multiplying n identical factors a as an n [1]. This operation of finding the product of several identical factors is called power, and the result of power is called power. In n, a is called the base and n is called the exponent. N is pronounced "a to the n power" or "a to the n power".

A number can be regarded as the first power of the number itself. For example, 5 is 5 1, and the index 1 is usually omitted. Quadratic is also called square, for example, 5 2 is usually pronounced as "the square of 5"; Cubes are also called cubes. For example, 5 3 can be read as "5 cubes".

When the base of a power is a fraction or a negative number, the base should be bracketed.

Mixed operation

Multiplication and division power mixed operation, first calculate the power, then calculate the multiplication and division; If you encounter parentheses, do the operation in parentheses first.