Bonjour,
7x ( x² + 2x+ 3)
(xy) ( x - y +2xy)
(3y-4) ( x+4)
(3x+4) ( 5x-2 + 3x+4)
=(3x+4) ( 8x +7)
(2x-3) ( x+1 +5)
= (2x-3)(x+6)
(x+1) ( x+1 +3 +1)
= (x+1) ( x+ 5)
x( -3 +4x +7x²)
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Bonjour,
7x ( x² + 2x+ 3)
(xy) ( x - y +2xy)
(3y-4) ( x+4)
(3x+4) ( 5x-2 + 3x+4)
=(3x+4) ( 8x +7)
(2x-3) ( x+1 +5)
= (2x-3)(x+6)
(x+1) ( x+1 +3 +1)
= (x+1) ( x+ 5)
x( -3 +4x +7x²)