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Sagot :

MAUDMARINE

Bonjour

A(x)=(3-2x) (2x+4) (x-1)

A (x) = (6x + 13 - 4x² - 8x) (x - 1)

A (x) = 6x² - 6x + 13x - 13 - 4x³ + 4x² - 8x + 8x

A (x) = - 4x³ + 6x² + 4x² - 6x + 13x - 13

A (x) = - 4x³ + 10x² + 7x - 13.

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