Question

please tell me fastly please ​

Answer 1

Answer:

your answer

property a^2-b^2

49-25

=24

Answer 2

Answer:

given,

x=√7+√5 , y=√7-√5

xy=(√7+√5)(√7-√5)

xy=(√7)^2-(√5)^2 [by using formula a^2-b^2=(a+b)(a-b) ]

xy=7-5

xy=2

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