Question

Evaluate the following by using the identity (a - b)2 = a? - 2ab + b2 :
(a) (39)2
(b) (84)
(c) (698)
(d) (999)​

Answer 1

Answer:

a. (a)^2. so (39)^2

Step-by-step explanation:

(a-b)^2=a^2-2ab +b^2

hope it is right answer guys

Answer 2

Step-by-step explanation:

(I) 1521 answer

(b)7056 answer

(c) and (d) do yourself