Supprimer les parenthese et les reduire (dans le petit c c'est la lettre x)

a) 2(a+5)-(1+3a)=

b) 4(2b-7)+(5b-11)=

c) (1+4x)-x(3-2x)=

d) -4y(2+y)-3(2y-y²)=

e) 3(2y²+4y)+2y(-6+2y)=

aider moi
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