Understand and use integer powers and associated real roots (square, cube and higher). Laws of indices for multiplication and division Use index laws for multiplication and division.

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 ...