Question

Simplify (√5-√2) (√5±√2)

Answer 1

(√5−√2)(√5−√2)

$→=7−2√10(Decimal: 0.675445)$

Answer 2

Answer:

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