Question

solve
1. (56+78)×(56-78)​

Answer 1

Answer:

(56+78) x (56-78)

     134 x -22

       = -2948

Hope my answer helps YOU!!

Answer 2

Answer:

by

using identity (a+b) × (a-b) =a^2 - b^2

Step-by-step explanation:

56^2 - 78^2 = 3136 - 6084 = -2984

therefore (56+78)×(56-78)=. -2984