Tirginometry

the expression 4ab(square root of)2b-3a(square root of)18b^3+7ab(square root of)6b is equivalent to...
(a)2ab(square root of)6b
(b)16ab(square root of)2b
(c)-5ab+7ab(square root of)6b
(d)-5ab(square root of)2b+7ab(square root of)6b
Please help its due monday!

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  1. 4ab√(2b) - 3a√(18b^3) + 7ab√(6b)
    = 4ab√(2b) - 3a(3b)√(2b) + 7ab√(6b)
    = -5ab√(2b) + 7ab√(6)

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  2. Thank you once again

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