développer et réduire (x+1) (x+2) merci bcp.... Pergunta de ideia declodss

December 2020 1 70 Report

développer et réduire (x+1) (x+2)

merci bcp

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hirondelle52

Bonjour,

Double distributivité

(x+1) (x+2)

x*x = x²

x*2 = 2x

1*x = x

1*2 = 2

=> x² +2x +x +2 = x +3x +2

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