Question

$(\sqrt{6} + \sqrt{2}) * (\sqrt{6} - \sqrt{2})$

Answer 1

[tex]( \sqrt{6}+ \sqrt{2} )( \sqrt{6} -\sqrt{2} )= \\ Folosim~formula~de~calcul~prescurtat~(a+b)(a-b)=a^2-b^2: \\ ( \sqrt{6}+ \sqrt{2} )( \sqrt{6} -\sqrt{2} )= ( \sqrt{6} )^2-( \sqrt{2} )^2=6-2=\boxed{4}[/tex]

Answer 2

( √6 + √2)( √6 - √2) = ( √6)² - (√2)²= 6 - 2 = 4
Se foloseste formula de calcul prescurtat:
 ( a - b)( a + b) = a² - b²
Sper ca ti-am fost de ajutor!