Question

If a= 3+√5, then find the value of a² + 1
02)​

Answer 1

Answer:

a= 3+2.2= 5.2 therefore 5.2*5.2+102= 27.04+102= 129.04

Answer 2

Answer:3(2√5+5)

Step-by-step explanation:

If a= 3+√5

Than

a^2 +1

(3+√5)^2 +1

9+5+6√5+1

6√5+15

3(2√5+5)