you click the 2nd button then you click the button that looks like a x with little 2 on the right side of it and then type the number you want square rooted, hope that helps.
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I cant use the square root symbol so lets use the word "root" to represent square root. The answer would be 4root2
-13 or +13 are both square root of 169, but we often use the positive square root, 13, as the principal square root.
Use a calculator.
Square root of 10. If you need decimals, use the calculator to calculate the square root of 10.
geuss and check. ? x ?=25 ?=5 so the square root of 25 is 5