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28.01 Recopier et compléter.
a. 4* (...+5) = 4x + ...
b. 3x(y + ...) = ... +18
c. 5x(z + ...) = ... + 5t
d. 2x(u - ...) = ... - 16
e. 8(2v - ...) = ... - 8
f. w...-5) = w2-

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