SOLUTION: multiply (square root of 10 + 2)(sqaure root 10 - 2)
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Question 245022
:
multiply
(square root of 10 + 2)(sqaure root 10 - 2)
Answer by
stanbon(75887)
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multiply
(square root of 10 + 2)(square root 10 - 2)
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Since (a+b)(a-b) = a^2-b^2, your problem is:
(sqrt(10) + 2)(sqrt(10)-2) = 10-4 = 6
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Cheers,
Stan H.