Somewhere around middle school, you learned about squaring numbers and the inverse, finding the square root of a number, but a little reminder can't hurt. You square a number when you multiply it by ...

A root is the opposite of a power. The root of a number is another number that can be multiplied by itself to get the first number. As 2 squared is 4, then a square root of 4 must be 2: \(2^2 = 4\).

Roots are the opposite of powers. As 2 squared is 4, then a square root of 4 must be 2. \(2^2 = 4\). Reversing this gives \(\sqrt{4} = 2\). To find square roots or cube roots, work backwards from ...