simplify root 5 +root 3/root5-root 3+root 5-root 3/root 5+root3
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take the LCM
by using the identities
(a +b)^2 = a^2 + b^2 + 2ab
a^2 - b^2 = (a+b)(a-b)
by using the identities
(a +b)^2 = a^2 + b^2 + 2ab
a^2 - b^2 = (a+b)(a-b)
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