Resposta :
(4+√3)(4-√3) = (4-√3)²
[tex](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}}[/tex]
(4+√3)(4-√3) nao to conseguindo resolver mee ajudem
(4+√3)(4-√3) = (4-√3)²
[tex](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}}[/tex]