Respuesta :

choixongdong
(√14-√3)(√12+√7)
= 2√42  + 7√2 - 6 - √21
answer is A. first one
kphung76127
Foil when multiplying 2 binomials.

First:
√14*√12= √14* 2√3= 2√42

Outer:
√14*√7= √98= 7√2

Inner:
-√3* 2√3= -2√9= -2(3)= -6

Last:
-√3* √7= -√21

Final answer: 2√42+ 7√2 -6 -√21

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