Question

find the continued product of (root a + root b)(root a - root b)(a +b)(a2 +b2) pls give a proper answer and don't write I don't know or promote any of you social media here

Answer 1

The identity that is being used in the given question is

(x+y)(x-y) = x² - y²

$(\sqrt{a}+ \sqrt{b})(\sqrt{a}-\sqrt{b})(a+b)(a^2+b^2)\\ \\= (a-b)(a+b)(a^2+b^2)\\\\= (a^2-b^2)(a^2+b^2)\\\\ =\large\black\boxed{a^4-b^4}$