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Sagot :

Hello

A = -3x² + 5x - 2

A = - 3x² + 3x + 2x - 2

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

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

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

B = x² - 8x + 7

B = x² - 8x + 16 - 9

B = ( x - 4 ) ² - 9

bonne journée

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