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s'il veut plaît aide moie A=1002²-2004+1 B=2021²-2020²​

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LOULAKAR

Bonjour


A=1002²-2004+1

A = a^2 - 2 x a x b + b^2

A = (a - b)^2

A = (1002 - 1)^2

A = 1001^2

A = (1000 + 1)^2

A = 1000000 + 2000 + 1

A = 1002001

B=2021²-2020²​

B = a^2 - b^2

B = (a - b)(a + b)

B = (2021 - 2020)(2021 + 2020)

B = 1 x 4041

B = 4041