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Stie cineva repede cum se rezolva aceste exercitii: (-4a+3b-10c)-(11-2a-4b)+(6a+14c-20b)si(7x-6y)-5x-radical3(2radica3x-4radical3y)+(-x+(y+x)+7y)

Răspuns :

(-4a+3b-10c)-(11-2a-4b)+(6a+14c-20b)= -4a+3b-10c-11+2a+4b+6a+14c-20b=
=+4a-13b+4c-11