Identité remarquable 3ème

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(1 - x) . (1 - x ) =

(1 – 2x)² =

(4 + x) . (5 - x ) =

(2 - x)² =

(3 - x) . (1 - x ) =

(1 + 2x)² =

(2 + x) . (2 - x ) =

(6 - x)² =

(4 + x) . (2 + x ) =

(2 + 3x)² =