Multiplying Binomials

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)

Add or subtract Polynimials

Solution:
We can simplify by combining the like terms. Like terms are the ones that are alike in every way except for maybe their coefficients. To simplify subtraction we can convert to addition (and eventually reverse the signs on every term of the subtrahend)