Simplifying (4ab x (sqrt 2b)) - (3a x (sqrt18b^3)) + (7ab x (sqrt6b))

Answer 1

I see it as
4ab√(2b) - 3a√(18b^3) + 7ab√(6b)

= 4ab√(2b) - 9ab√(2b) + 7ab√(6b)
= -5ab√(2b) + 7ab√(6b)

we could write √(6b) as √3√(2b) , but really see no advantage , and it certainly wouldn't look more "simplified"