Bonjour,
Développement :
(8 - 9x)(2x - 4)
= 8 × 2x + 8 × (-4) - 9x × 2x - 9x × (-4)
= 16x - 32 - 18x² + 36x
= -18x² + 52x - 32
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Bonjour,
Développement :
(8 - 9x)(2x - 4)
= 8 × 2x + 8 × (-4) - 9x × 2x - 9x × (-4)
= 16x - 32 - 18x² + 36x
= -18x² + 52x - 32