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descompuneti in factori utilizand formulele de calcul prescurtat : 100x la a doua - 4 (3x+1) la a doua

Răspuns :

100x la a doua  = 100x inmultit cu 100x = 10.000x

4(3x+1) = 12x + 4.

10.000x - 12x = 9.998x +4 = 9998x +