Exercice 11: Développe puis, si possible, réduis les expressions suivantes : B = -4x(5 + 7x) E = x(-5-3x) + 26x A= 8(x-3) D= 2x(-3x+6) C=-6(10+2y) - 2y F = 5x(-3-7x) - 2(-x
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b: -20x-28x²
e=-5x-3x²+26x=-3x²+21x
a: 8x-24
d: -6x²+12x
c: -60-12y-2y=-60-14y
f: -15x-35x²+2x-14=-13x-35x²-14