Simplify the radical expression (3+√6)(3-√6)

Applying the distributive property, the given radical expression can be represented by 15.Properties of MultiplicationThe properties of multiplication are:      Distributive:  a(b±c)=  ab±ac      Commutative:   a . b = b. a      Associative:    a(b+c)=  c(a+b)      Identity: b.1=bThe question gives [tex](3+\sqrt{6} )(3-\sqrt {6} )[/tex]. Therefore, you should analyze the properties presented previously, and after that, you should identify which was used.Here, it is possible to see that you can apply the distributive property. See below.[tex](3+\sqrt{6} )(3-\sqrt {6} )\\ 9-3\sqrt {6} +3\sqrt {6}+6[/tex]9+0+6=15Then,  the radical expression (3+√6)(3-√6)=15Read more about the distributive property  here:brainly.com/question/4077386#SPJ1