Question

find the product of
$( \sqrt{7}+ \sqrt{5)} } ( \sqrt{7} - \sqrt{5})$
​

Answer 1

Answer:

2

Step-by-step explanation:

$( \sqrt{7} + \sqrt{5} )( \sqrt{7} - \sqrt{5} ) \\ = ( \sqrt{7} - \sqrt{5} )^{2} \\ = 7 - 5 \\ = 2$