Question

use the formula and find the value ( 197)^3
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Answer 1

Answer:

203×197=(200+3)×(200−3)

Applying the formula (a+b)(a−b)=a

2

−b

2

, where a=200,b=3

203×197=(200+3)×(200−3)=200

2

−3

2

=40,000−9=39991