Question

Plz simplify this....... ​

Answer 1

Answer:

Step-by-step explanation:

this is the expansion for a square - b square

so, answer will be 5 square - √5 square

=25-5

=20

Answer 2

(5-root5)(5+root5)

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

=5^2-(root5)^2

=25-5

=20=and