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In arithmetic and algebra, the fourth power of a number n is the result of multiplying four instances of n together. So: n4 = n × n × n × n. Fourth powers are also formed by multiplying a number by its cube. Furthermore, they are squares of squares.
When a quantity is multiplied into itself, the product is called a power. Thus 2×2 = 4, the square or second power of 2 2×2×2 = 8, the cube or third power. 2×2×2×2 = 16, the fourth power. So 10×10 = 100, the second power of 10. 10×10×10 = 1000, the third power. 10×10×10×10 = 10000 the fourth power.
Exponents. The exponent of a number says how many times to use the number in a multiplication. In 82 the "2" says to use 8 twice in a multiplication, so 82 = 8 × 8 = 64. In words: 8 2 could be called "8 to the power 2" or "8 to the second power", or simply "8 squared".
Squares. The square of a number is that number times itself. 5 squared, denoted 52, is equal to 5×5, or 25. 2 squared is 22 = 2×2 = 4. One way to remember the term "square" is that there are two dimensions in a square (height and width) and the number being squared appears twice in the calculation.
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There are two specially-named powers: "to the second power" is generally pronounced as "squared", and "to the third power" is generally pronounced as "cubed". So "5 3" is commonly pronounced as "five cubed". When we deal with numbers, we usually just simplify; we'd rather deal with "27" than with "3 3".
21 Δεκ 2021 · Exponent, Power 5 is called the exponent, or power. \(8^5\) is read as "eight to the fifth power," or more simply as "eight to the fifth," or "the fifth power of eight." Squared When a number is raised to the second power, it is said to be squared. The number \(5^2\) can be read as. 5 to the second power, or 5 to the second, or 5 squared. Cubed
