THEY ARE INVERSE OF THEMSELVES.

SQUARE

The square of a number is the result of a number multiplied by itself. Example 2² (meaning two squared, or 2 x 2) = 4

SQUARE ROOT

The square root is the value, that when multiplied by itself is the number. Example √4 = 2 because, as we see from the first definition, 2² = 4.

The square usually has two answers because not only does 2² = 4, so does (-2)² so -2 os also a square root of 4.

It is usually written √4 = ±2 meaning positive or negative 2.

Actually square and square root are the same process, called exponentiation, just raising a number to a different exponential power. "Squaring" a number means to raise that number to the power of 2. The square root means raising it to the power of 1/2.

There is a rule about exponents. (a^{m})^{N} = a^{(mn)}. So, [4^{(1/2)}]^{2} = 4^{[(1/2)(2)]} = 4^{1} = 4.

They sort of "undo" each other..That's why they are called opposite operations, or inverse operations..