Question

radicales
(√7+2√2) por (√7-2√2) ​

Answer 1

Respuesta:

Explicación paso a paso:

producto notable

(a+b)(a-b) = $a^{2} - b^{2}$

$a = \sqrt{7}\\ b = 2\sqrt{2} \\ (\sqrt{7} )^{2} = 7 \\ (2\sqrt{2})^{2} = 8 \\ a^{2} -b^{2} = 7 - 8 = -1$