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What number equals nine squared?
To square a number means to multiply it by itself. Thus, 92 (read: nine squared, or nine to the second power) = 9 x 9=81
What is the Difference between a square and a square root?
A "square" (2nd power) is the result of multiplying a number by itself. For example, the square of 3 is 9 because 3 x 3 = 9. A "square root" (-2 power) is in the opposite exponential direction: you are finding the number which multiplied by itself will equal your given number. Using the same example, the square root of 9 is 3, because 3 x 3 = 9. Except for numbers that are squares of integers, most square roots will be long non-repeating decimals. (The square root of 2 is 1.414213562...)
What square number comes after 16?
25. Square numbers are numbers that result from integers being raised to the power of 2. 1^2 = 1. 1 is the first square number. 2^2 = 4. 4 is the second. 3^2 = 9. 4^2 =16. 5^2 = 25.
What is the symbol of squared?
squared is simply written as a constant raised to the second power. For example, 3 to the second power=9. The way to write the power, or exponent, is by writing a superscript (small number in the uppper righthand corner of the number or variable) number 2.
Which number has the square root of 9?
3 or -3. 32 = 9 and (-3)2 = 9 * * * * * +3 and -3 do not have the square root of 9 - they are the square roots of 9. The number 81 has the square root 9.
