Question

PLEASE ANSWER ME FAST I'll mark as brainlist ​

Answer 1

Step-by-step explanation:

1. 103^2 = (100+3)^2
2. 997^2 = (1000-3)^2
3. 103*97 = (100+3)(100-3)
4. 10.2^2 - 9.8^2 = (10+0.2)^2 - (10-0.2)^2
5. 54*59 = (50+4)(50+9)

now just simply apply identities as

1. (a+b)^2
2. (a-b)^2
3. a^2 - b^2
4. (a+b)2 - (a-b)2 = 4ab
5. (x+a)(x+b) = x2 + (a+b)x + ab

mark as brainlist hath dukhne lag gye likhte likhte