Question

expand and simlify (7+ root 5) (3- root 5)

Answer 1

Answer:

21-7root5+3root5-5

16-4root5

Answer 2

(7+root5) (3-root5)

First remove the brackets

7+root 5 +3 - root 5

+root 5 and - root 5 will be canceled

So the answer will be 7+3=10