The value of (5 + √5) (5 − √5) is 0 25 20 -20 Question The value of (5 + √5) (5 − √5) is 0 25 20 -20 in progress 0 Math Aubrey 11 months 2021-08-11T13:54:18+00:00 2021-08-11T13:54:18+00:00 1 Answer 0 views 0
Answers ( )
Answer:
20
Step-by-step explanation:
(5+√5) (5-√5)=(a+b) (a-b)=a²-b²
=(5)²-(√5)²
=25-5
=20