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xla 3 -5x la 2+2x-7-(x la 3+4x-1)+(x la 2+6x+2)​

Răspuns :

Răspuns:

x³-5x²+2x-7-(x³+4x-1)+(x²+6x+2)=x³-5x²+2x-7-x³-4x+1+x²+6x+2=-4x²+4x-4