simplify. All variables represent nonnegative numbers. √128

We rewrite the radicand in factored form, then put all perfect squares under one radical and everything else under the other. Finally...we simplify:





:)

Rewrite Sqrt(1+i) in standard form - with radicals

Adding or Subtracting Radical Expressions

We start by factoring 32 and 72 the rewriting in a way that helps us determine if the radicals are like terms. After we know they are like terms and we've simplified each term we can combine them (add their rational parts and keep sqrt(2) as it is)