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In mathematics, a square root of a number x is a number y such that ; in other words, a number y whose square (the result of multiplying the number by itself, or ) is x. [1] For example, 4 and −4 are square roots of 16 because .
Square roots mean you multiply the same number twice to equal another number. For example, if you have the number 81 then the square root is 9 because 9*9 is 81 or 81 divided by 9 is 9.
Learn how to square a number and find its square root, with examples, diagrams and exercises. Discover the perfect squares, negative numbers, decimal numbers and the square root symbol.
In Maths, the square root of a number produces the original number when multiplied by itself. Learn how to find square roots, square root symbol, formulas, table, etc., only at BYJU’S.
Learn what square roots are, how to write them, and how to estimate and calculate them. Explore the properties and applications of square roots in math and science.
Learn how to find the square root of a number, which is the number that multiplied by itself gives the original number. Watch the video, read the transcript, and see the questions and answers from other learners.
The square root of a number is the factor that we can multiply by itself to get that number. The symbol for square root is 1 . Finding the square root of a number is the opposite of squaring a number. Example: 4 × 4 or 4 2 = 16. So 16 = 4. If the square root is a whole number, it is called a perfect square!
