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 ...

In one of the most hilarious papers we have read this year, two scientists challenged some famous quantum factorization ...

Save guides, add subjects and pick up where you left off with your BBC account. 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 ...