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Question
Simplify.
`4 sqrt 12 - sqrt 75 - 7 sqrt 48`
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Solution
`4 sqrt 12 - sqrt 75 - 7 sqrt 48`
`= 4sqrt (4 xx 3) - sqrt (25 xx 3) - 7 sqrt(16 xx 3)`
`=4xx2sqrt3-5sqrt3-7xx4sqrt3`
`= 8sqrt3 - 5 sqrt 3 - 28 sqrt 3`
`=(8-5-28)sqrt3`
`=-25sqrt 3`
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