Question

the product of (2+√5) and (2-√5)​

Answer 1

Answer:

4- 2√5+2√5 -5

4-5= -1

Step-by-step explanation:

thanks

Answer 2

(2+√5)(2-√5)

by using the formula

(a+b)(a-b)=a²-b²

=(2)²-(√5)²

=4-5

=-1

here your answer