Question

(√6 - √7) x (√6 + √7) ??

Answer 1

(√6 - √7) x (√6 + √7) simplificas el producto

6 - 7

-1

saludos :)

Answer 2

$(\sqrt{6} -\sqrt{7} )(\sqrt{6} +\sqrt{7} )x\\-(\sqrt{6} -\sqrt{7} ) (\sqrt{6} +\sqrt{7}) =1\\x-1=-1\\-x$