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Développer et simplifier les expressions litterales : A=3(u+3)

B=5(t-1)

C=(x+7)y

D=(y-z)t

E=(-7+a) x 5

F=(3-b)x(-5)

G=-2(3-2x)

H=-3(a+3)

Sagot :

A=3(u+3)

= 3u+3

 

B=5(t-1)

=5t-5

 

c=y(x+7)

=yx+7y

 

d=(y-z)t

=ty-tz

 

e=5(-7+a)

=-35+5a

 

f=(3-b)(-5)

=-15+5b

 

g=(-2)(3-2x)

=-6+4x

 

h=-3(a+3)

=-3a-9

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