Question

without actual squaring find the value of 42 square - 41 square​

Answer 1

Answer:

83 is ur answer

Step-by-step explanation:

42^2-41^2

a^2-b^2=(a+b)×(a-b)

42^2-41^2=(42+41)(42-41)

=83×1

=83

Answer 2

Step-by-step explanation:

I know a formula

42-41=1

(1)^2 = 1

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