How do you simplify (2√7+√3)×(3√7−√2)?

1 Answer
Daniel L.
Sep 4, 2016

The value is 42−2√14+3√21−√6

Explanation:

(2√7+√3)×(3√7−√2)
=6⋅7−2√7√2+3√7√3−√2√3
=42−2√14+3√21−√6

In these calculations I used the following properties of square roots:

  1. √a⋅b=√a⋅√b

  2. √a⋅a=a

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