FOIL method:
(3−√5)(7−√5)
= 3(7) + 3(-√5) - √5(7) - √5(-√5)
= 21 - 3√5 - 7√5 + 5
Combine like terms:
= 26 - 10√5
Final answer:
(3−√5)(7−√5) = 26 - 10√5
Multiply and simplify if possible.
(3−√5)(7−√5)
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