Question

(4+√3)(4-√3) nao to conseguindo resolver mee ajudem 

Answer 1

(4+√3)(4-√3)= 16 -4√3 +4√3 -√3√3=16-3=13                   √3√3=3    

Answer 2

(4+√3)(4-√3) = (4-√3)²

 

$<var>(4-\sqrt{3})^{2} \\ (4)^{2} - 2\cdot 4\cdot \sqrt{3} + (-\sqrt{3})^{2} \\ 16-8\sqrt{3} + \sqrt{9} \\ 16-8\sqrt{3} + 3 \\ \boxed{19-8\sqrt{3}}</var>$