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Idyana87
a fost răspuns

efectuati respectand ordinea efectuarii operatiilor:
(x²+y+1) (3x-y) - (2x)² (x-y) +2x(3x²-2y)
VA ROG MULT!!! E URGENT!!!

Răspuns :

Nitugheorghe57
(x²+y+1)(3x-y)-(2x)²(x-y)+2x(3x²-2y)=
(3x³+3xy+3x-x²y-y²-y)-(4x)²(x-y)+6x³-4xy=
3x³-3xy+3x-x²y-y²-y-4x³+4x²y+6x³-4xy=
5x³+3x²y-7xy+3x-y²-y
sucees

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