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Question
Multiply
`sqrt3 (sqrt 7 - sqrt 3)`
Sum
Solution
`sqrt3 (sqrt 7 - sqrt 3)`
`= sqrt 3 xx sqrt 7 - sqrt 3 xx sqrt 3`
`= sqrt 21 - sqrt 9`
`= sqrt 21 - 3`
`= - 3 + sqrt21`
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Binomial Quadratic Surd
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Chapter 2: Real Numbers - Practice Set 2.4 [Page 32]