Question 170932
How do you find (square root of 3 - square root of 5)(square root of 3 - square root of 5)
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It follows the form (a-b)^2 = a^2-2ab+b^2
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Your Ans:
[(sqrt(3)]^2 - 2sqrt(15) + [sqrt(5)]^2

= 3 - 2sqrt(15) + 5

= 8 - 2sqrt(15)
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Cheers,
Stan H.