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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: n 4 = n × n × n × n. Fourth powers are also formed by multiplying a number by its cube. Furthermore, they are squares of squares.
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 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.
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.
4 Ιουν 2023 · The graph of the right-hand side of \(x^2 = 25\) is a horizontal line located 25 units above the x-axis. The graphs will intersect in two points, so the equation \(x^2 = 25\) has two real solutions. The solutions of \(x^2 = 25\) are called square roots of 25 and are written \(x = \pm \sqrt{25}\).
21 Δεκ 2021 · 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 When a number is raised to the third power, it is said to be cubed. The number \(5^3\) can be read as. 5 to the third power, or 5 to the third, or 5 cubed. When a number ...
Laws of Exponents. Exponents are also called Powers or Indices. The exponent of a number says how many times to use the number in a multiplication. In this example: 82 = 8 × 8 = 64. In words: 8 2 could be called "8 to the second power", "8 to the power 2" or simply "8 squared". Try it yourself:
