What is a radical?
a wild-eyed political dissident
Your school SUBJECT is "Math" not "Dahal."
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A radical is a mathematical symbol (√) used to denote the square root of a number. It is written as a horizontal line (√) with a number or expression underneath it. The symbol represents the principal square root of a number, which is the positive square root. For example, the radical of √9 is 3, because 3 multiplied by itself equals 9.
To calculate the value of a radical, you can follow these steps:
1. Determine the number or expression underneath the radical symbol.
2. Factorize the number or simplify the expression if possible.
3. Identify perfect square factors, meaning numbers that can be multiplied by themselves. For example, in the expression √12, the perfect square factor is 4, because 4 x 4 = 16. So, we can rewrite √12 as 2√3.
4. Calculate the value of the radical by taking the square root of the perfect square factor and multiplying it by any remaining factors. For our example, √12 = 2√3 because √4 x √3 = 2 x √3.
It's also worth noting that radicals can have indices other than 2, which would indicate other types of roots (such as cube roots, fourth roots, etc.). The default index is 2, which represents the square root.