Question

Simplifique a fração:
(√6+√2)^2
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(√7+√3) * (√7-√3)

Answer 1

$( \sqrt{6} + \sqrt{2} )^{2} = ( \sqrt{6} + \sqrt{2} ).( \sqrt{6} + \sqrt{2} ) = \sqrt{36} + \sqrt{12} + \sqrt{12} + \sqrt{4} =$

$6+2. \sqrt{12} +2 = 8+2 \sqrt{12}$

$( \sqrt{7} + \sqrt{3} ).( \sqrt{7} - \sqrt{3} ) = \sqrt{49} - \sqrt{21} +\sqrt{21} - \sqrt{9} = 7 - 0 - 3 = 4$