SOLUTION: Hello, please help me. I need to find the area of a rectangle. One side is \/3+\/5 (my \/ means rational) and the other side is the same. Thanks.

Algebra ->  Radicals -> SOLUTION: Hello, please help me. I need to find the area of a rectangle. One side is \/3+\/5 (my \/ means rational) and the other side is the same. Thanks.      Log On


   

Question 54739: Hello, please help me. I need to find the area of a rectangle. One side is \/3+\/5 (my \/ means rational) and the other side is the same.
Thanks.
Answer by Cintchr(481) About Me  (Show Source):
You can put this solution on YOUR website!
+A+=+l+%2A+w+
+A+=+%28sqrt%283%29%2B+sqrt%285%29%29%28sqrt%283%29%2B+sqrt%285%29%29+
FOIL
F: rt3 * rt3 = 3
O: rt3 * rt5 = rt15
I: rt3 * rt5 = rt15
L: rt5 * rt5 = 5
Add like terms
+A+=+3+%2B+sqrt%2815%29+%2B+sqrt%2815%29+%2B+5+
+A+=+8+%2B+2sqrt%2815%29+