Question

simpify (2+3√5)(2-3√5)​

Answer 1

Answer:

-41

Step-by-step explanation:

(2 + 3√5)(2 - 3√5)​

{Using identity : (a + b)(a - b) = a² - b² }

(2)² - (3√5)²

4 - 9(5)

4 - 45

-41