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Question
Simplify the following:
`8sqrt(3) - 3sqrt(27) + 6/sqrt(3)`
Simplify
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Solution
`8sqrt(3) - 3sqrt(27) + 6/sqrt(3)`
Step 1: Simplify each radical term
`sqrt(27) = sqrt(9 xx 3) = 3sqrt(3)`
So, `-3sqrt(27) = -3(3sqrt(3)) = -9sqrt(3)`
`6/sqrt(3) = 6/sqrt(3) xx sqrt(3)/sqrt(3) = (6sqrt(3))/3 = 2sqrt(3)`
Step 2: Substitute back
`8sqrt(3) - 9sqrt(3) + 2sqrt(3)`
Step 3: Combine like terms
`(8 - 9 + 2)sqrt(3) = 1/sqrt(3)`
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Chapter 1: Rational and Irrational Numbers - MISCELLANEOUS EXERCISE [Page 18]
