Question

evaluate the following using identities (105)^2, (47)^2,(8.3×7.7)​

Answer 1

Answer:

(100 + 5)^2

(100)^2 +2×100×5+(5)^2

10000 +1000+25

11025

(40+7)^2

(40)^2+2×40×7+(7)^2

1600+560+49

2209