SOLUTION: multiply!! (5-4 √10) (3√5-2) simplify as much as possible! the √ signs are square root signs. thanks so much!!

Algebra ->  Radicals -> SOLUTION: multiply!! (5-4 √10) (3√5-2) simplify as much as possible! the √ signs are square root signs. thanks so much!!      Log On


   

Question 445110: multiply!!
(5-4 √10) (3√5-2)
simplify as much as possible!
the √ signs are square root signs.
thanks so much!!
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
multiply!!
(5-4 √10) (3√5-2)
simplify as much as possible!
the √ signs are square root signs.
thanks so much!!
..
Remember FOIL, First, Outside, Inside, Last ?
(5-4√10)(3√5-2)
=15√5-10-12√50+8√10
=15√5-10-12√(2*25)+8√10
=15√5-10-12*5√2+8√10
=15√5-10-60√2+8√10 (ans)