Question

simplify (√5 -√2) (√5+√2)​

Answer 1

Answer:

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Answer 2

$given \: that$

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

$here \: the \: formula \: used \: is$

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

$( \sqrt{5} ) { }^{2} - ( \sqrt{2) { \: }^{2} } \:$

$\sqrt{5 \times \sqrt{5 = 5} }$

$\sqrt{2 \times \sqrt{2 = 2} }$

$5 - 2 = 3$

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