cr7rmd111 cr7rmd111

08-05-2017
Mathematics

contestada

Simplify the radical expression. HELP PLEASE!!!!!!

(3 + √6) (3 -√6)

a) -27

b) 3

c) 9+6√6

d) 15+6√6

Respuesta :

Аноним Аноним

08-05-2017

(a+b)(a-b)=a²-b²
In this case:
(3)²-(√6)²=9-6=3

Answer: b) 3

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