Question

show that ( 2 + √3) ( 2 - √3) ( 5 + √2) ( 5 - √2) is a relational number​

Answer 1

Answer:

$(2 + \sqrt{3}) (2 - \sqrt{3}) (5 + \sqrt{2} ) - (5 - \sqrt{2} )$

$(4 - 3) \times (5 + \sqrt{2} ) \times (5 - \sqrt{2} )$

$1(25 - 2)$

$23$