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Vert
@Vert
May 2019
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Bonjour,est-ce que (2x+5)*2x-(x carré+5x+4)*2=4x carré+10x-2x carré -10x-8 ?
Donc si c'est cela, le résultat est 2x carré-8 ?
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Eliott78
Verified answer
Bonjour,
(2x + 5) × 2x - (x² + 5x +4) × 2
4x² + 10x - (2x² + 10x + 8)
4x² + 10x -2x² - 10x - 8
2x² - 8
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Thanks 2
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Verified answer
Bonjour,(2x + 5) × 2x - (x² + 5x +4) × 2
4x² + 10x - (2x² + 10x + 8)
4x² + 10x -2x² - 10x - 8
2x² - 8