<PRE><B>Question 33345</B>
a) sqrt[  ] = 12x^5y^6z^9

b) = 5sqrt2 +2(4)sqrt2 - 2sqrt2
   = (5+8-2)sqrt2 = 11sqrt2

c) Use FOIL to get:
   5(2)-10sqrt(6)+3sqrt2-6sqrt3

Cheers,
Stan H.
</PRE>