Question

find square of the following numbers by uaing identities a) 197
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Answer 1

Answer:

Given (197)

2

But we can write 197 as 200−3

And also we know that (a−b)

2

=a

2

−2ab+b

2

By applying the above identity we get

(197)

2

=(200−3)

2

=200

2

−2(200)(3)+3

2

(197)

2

=40000−1200+9=38809

Answer 2

Answer:

38,809

Step-by-step explanation:

sorry I cannot do this