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Question
Multiply.
`(sqrt 5 - sqrt 7) sqrt 2`
Sum
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Solution
`(sqrt 5 - sqrt 7) sqrt 2`
`= sqrt 5 xx sqrt 2 - sqrt 7 xx sqrt 2`
`= (sqrt5 - sqrt7) sqrt2`
`= sqrt 10 - sqrt 14`
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Binomial Quadratic Surd
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Chapter 2: Real Numbers - Practice Set 2.4 [Page 32]
