Bonjour, pourriez vous m'aider à factoriser ces expressions svp ? ​

Réponse:

7À = 10x carré - 9x - 7 = ( 5x - 7 ) ( 2x + 1 )

7B = 24x carré - 2x - 15 = ( 6x - 5 ) ( 4x + 3 )

7 C = 65 + 3x - 2x carré = ( 13 - 2X ) ( x + 5 )

7D = 24x carré + 13x - 7 = ( 3X - 1 ) ( 8x + 7 )

8A = 4x carré + 49x + 55 = ( x + 11 ) ( 4x + 5 )

8B = 20x carré - 33x + 10 = ( 4x - 5 ) ( 5x - 2 )

8C = 12 + 13x - 90x carré = ( 4 - 9x ) ( 10x + 3 )

8D = 3x carré - 7x - 40 = ( x - 5 ) ( 3x + 8 )