Find (root a + root b) ( root a - root b)
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Answered by
4
(√a+√b)(√a-√b). .
a-√a√b+√b√a-b. .
.
=a-b
Answered by
5
(√a+√b)(√a-√b)
= (√a)2 - (√b)2
= a - b
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