Sagot :
A = -8x² + 6x +35
B = 22x + 35
C = 6 (x-2)
D = -14x - 8x²
E = -56x²
Voilà j'espère t'avoir rendu service ^^
A=(2x-5)(-7-4x)
=-14x-8x²+35+20x
=-8x²+6x+35
B=2x-5(-7-4x)
=2x+35+20x
=22x+35
C=(2x-5)-(7-4x)
=2x-5-7+4x
=6x-12
D=(2*x)(-7-4x)
=2x(-7-4x)
=-14x-8x²
E=(2*x)(-7*4x)
=2x(-28x)
=-56x²