Question

14.
Find the square of the following numbers using the identity (a +b)2 or (a -b)2 :
a.
102
b.
997

Answer 1

Step-by-step explanation:

102

(100+2)²

(100)² + (2)² + 2(100)(2)

10000 + 4 + 400

10404 Ans.

997

(1000-3)

(1000)² + (-3)² - 2(1000)(3)

1000000+9 -6000

994009. Ans.

Answer 2

Answer:

a)10404

b) 994009

Step-by-step explanation:

a.(100+2)²

(100)²+2*100*2+(2)²

10000+400+4

10404

b. (1000-3)²

(1000)²-2*1000*3+(3)²

1000000-6000+9

994009

hope it helps u mark as brainliest.....