Question

(sqrt 3 + sqrt 5)^2

Answer 1

8 + 2root15

Answer 2

How did you get that answer?

Answer 3

sqrt3 squared is 3 and sqrt5 squared is 5, that's your 8.

Then you have sqrt3Sqrt5 twice is 2 sqrt 15

(FOIL)

Answer 4

(sqrt(3) +sqrt(5))^2
= (sqrt(3) +sqrt(5))(sqrt(3) +sqrt(5))
= 3+sqrt(15)+sqrt(15)+5
= 2sqrt(15) + 8

Answer 5

How do you get the 2 root 15?

Answer 6

add these two, sqrt(15) & sqrt(15)

Answer 7

sqrt3Sqrt5 is same as sqrt15

there are two them when you multiply out the brackets.