Question

value of (3 + root 5 )^2( 3 - root 5) ^2

Answer 1

Answer:

16

Step-by-step explanation:

((3+√5)^2)×((3-√5)^2)

= (9+5+6√5)×(9+5-6√5)

= ( 14+6√5) × ( 14- 6√5)

= 196 - 180

= 16