Question

use the identities. 2) (3 + 5)
^2​

Answer 1

Answer:

64

Step-by-step explanation:

{ using identity (a+b)² = a² + b² + 2ab }

=> (3+5)² = (3)² + (5)² + 2(3)(5)

= 9 + 25 + 30

= 64

{ also (3+5)² = (8)² = 64 }