Question

calculati (√5+√3)(√5-√3)
(√6-2)(√6+2)

Answer 1

ai formula (a+b)(a-b)=a^2-b^2

(rad5+rad3)(rad5-rad3)=
rad 25- rad9=
5-3=2

(rad6-2)(rad6+2)=
rad36-4=
6-4=2

Answer 2

(√5 + √3) * (√5 - √3) = 5 - √15 + √15 - 3 = 5 - 3 = 2.
(√6 - 2) * (√6 + 2) = 6 + 2√6 - 2√6 - 4 = 6 - 4 = 2.