Question

( 5+root 5 ) ( 5 _ root 5)

Answer 1

Answer:

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

${5}^{2} - { \sqrt{5} }^{2}$

$25 - 5 = 20$

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Answer 2

Answer:

(5+√5)*(5-√5)

identity ( a square - b square )

5 square - √5 square

25 - 5

20

Step-by-step explanation:

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