Question

(√15 +√7) (15 - √7) plz help I am in a hurry ​

Answer 1

Answer:

8

Step-by-step explanation:

(√15 +√7) (15 - √7)

Identity --

(a - b) ( a + b) = a^2 - b^2

= ((√15)^2 - (√7)^2)

= 15 - 7

= 8

Hope it helps