Radicals

Radicals can be multiplied and divided, and perfect squares can be extracted.

A radical is a number which equals another number if multiplied by itself a given number of times. The most common type of radical is the square root. Square roots can be multiplied and divided, as indicated above, but they cannot be added or subtracted.does not necessarily equal , but does equal

Mathematicians general frown on placing a radical in the denominator of a fraction. Adjust radicals in denominators by multiplying the numerator and denominator by the radical. For example,