Question

Evaluate (99.8)^2 using suitable identities​

Answer 1

Answer:

9960.04

Step-by-step explanation:

(99.8)^2 = ( 100-0.2 )^2

              = (100)^2 + (0.2)^2 - 2(100)(0.2)

              =  10000 + 0.04 - 2(20)

              = 10000.04 - 40

              = 9960.04