Question

1) The value of (61)2 - (51)2 is​

Answer 1

Answer:

it is in the form a²-b²=(a+b)×(a-b)

(61+51)×(61-51)

= (112)×10

= 1120

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Answer 2

61(2) - 51(2)
= 122-102
=20

Therefore 20 is your answer