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Sagot :

A. =(4*x)+(4*5)
=4x + 20

B. =(3*5x)+(3*(-3))
=15x + (-9)

C. =(5*2x)+(5*1)
=10x + 5

D. =( (2*x)+(2*(-1)) ) + ( (8*3x)+(8*4) )
= 2x + (-2) + 24x + 32
= 26x + 30

E. = ( (5*2x)+(5*1) ) +2
= 10x + 5 +2
= 10x +7

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