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What does the word root mean in maths?

In mathematics, the word "root" has two main meanings:

1. Root of an Equation:

* This refers to the value(s) of a variable that makes an equation true.

* For example, the equation x² - 4 = 0 has two roots: x = 2 and x = -2.

* Finding the roots of an equation is a fundamental task in algebra.

2. Root of a Number:

* This refers to a number that, when multiplied by itself a certain number of times, equals the original number.

* For example, the square root of 9 is 3 because 3 * 3 = 9.

* The cube root of 8 is 2 because 2 * 2 * 2 = 8.

* We can also talk about fourth roots, fifth roots, and so on.

Other uses:

* Square root symbol: The symbol used to represent the square root of a number is √.

* Nth root: The nth root of a number x is denoted by √ⁿx.

It's important to note that the context will tell you which meaning of "root" is intended.

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