find the value of (3 √2- 2 √3) (3 √2 + 2√3
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Answer:
let
3√2 = a
2√3 = b
we want the value of (a-b) (a+b)
(a-b) (a+b) = a^2- b^2
so, (3√2)^2 -(3√3)^2
=18-27 = -9
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