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Lovemine
@Lovemine
April 2019
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Développer l'expression suivante
4x(1-2x)+(3x-4)(-7-5x)
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maudmarine
Verified answer
Développer l'expression suivante
C = 4x (1 - 2x) + (3x - 4) (- 7 - 5x)
C = 4x - 8x
² - 21x - 15x² + 28 + 20x
C = - 8x² - 15x² + 4x + 20x - 21x + 28
C = - 23x² + 3x + 28
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maudmarine
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Verified answer
Développer l'expression suivanteC = 4x (1 - 2x) + (3x - 4) (- 7 - 5x)
C = 4x - 8x ² - 21x - 15x² + 28 + 20x
C = - 8x² - 15x² + 4x + 20x - 21x + 28
C = - 23x² + 3x + 28