Question

Ayudsaaaaaaaaaaaaaaaa A y B

Answer 1

Explicación paso a paso:

a)

$x = \frac{(1 - \sqrt{2} ) }{(1 + \sqrt{2} ) }$

$x = \frac{(1 - \sqrt{2} ) }{(1 + \sqrt{2} ) } \times \frac{(1 - \sqrt{2} ) }{(1 - \sqrt{2} ) }$

$x = \frac{ {(1})^{2} - 2 \times \sqrt{2} + {( \sqrt{2} )}^{2} }{( {1})^{2} - {( \sqrt{2} ) }^{2} }$

$x = \frac{1 - 2 \times \sqrt{2} + 2 }{1 - 2}$

$x = \frac{3 - 2 \times \sqrt{2} }{ - 1}$

$x = 2 \times \sqrt{2} - 3$

b)

$x = \frac{1}{\sqrt{3} - \sqrt{2} }$

$x = \frac{1}{( \sqrt{3} - \sqrt{2}) } \times \frac{( \sqrt{3} + \sqrt{2}) }{( \sqrt{3} + \sqrt{2}) }$

$x = \frac{( \sqrt{3} )^{2} - 2 \times \sqrt{3} \times \sqrt{2} + ( \sqrt{2})^{2} }{( \sqrt{3} )^{2} - ( \sqrt{2})^{2} }$

$x = \frac{3 - 2 \times \sqrt{2} \times \sqrt{3} + 2 }{3 - 2}$

$x = 5 - 2 \times \sqrt{2} \times \sqrt{3}$