Square Roots and Cube Roots

A square root of a number is a value that, when multiplied by itself, gives the original number. For example, the square root of 36 is 6, since 6 x 6 = 36.

A cube root of a number is a value that, when multiplied by itself three times, gives the original number. For example, the cube root of 27 is 3, since 3 x 3 x 3 = 27.

The square of -6 is -6 x -6 = 36.

The cube of 3 is 3 x 3 x 3 = 27.

The cube root of 1000 is 10, since 10 x 10 x 10 = 1000.

True.

Perfect squares are numbers that can be expressed as the square of an integer. Examples include 0, 1, 4, 9, 16, 25, etc.

9, 81, and 100 are perfect squares.