Question

please answer this question ​

Answer 1

Answer:

0

Step-by-step explanation:

a= (3+√5)(3+√5) / (3-√5)(3+√5) { Rationalizing }

= 9 + 5 / 9-5

= 14/4

= 7/2

b = (3-√5)(3-√5) / (3+√5)(3-√5)

= 14 / 4

= 7/2

a²-b² = (7/2)²-(7/2) ²

= 0