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Sagot :

Bonsoir,

A=7(4x+10)= 28x +70

B=5(11-27x) = 55-135x

C=(7+3x)x9 = 63+27x

D=(41+6x)x13x = 533x + 78x²

E=4(5x+8)+7(2+3x) =

20x +32+ 14 +21x=

41x + 46

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