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Nicoletatoma99
a fost răspuns

efectuati:a) (x-1)(x₊2)₊2(x₊3).b)( x²-x+1)(-3)-(x+1)(3x-1).c) x+2y)(x-y)-x₂+2y₂.d) (x₂+x)(-x+1)+x₃+2(x₂+x+2).e) (2x-3)(x₂+x+3y+2)-(x-1)(x+1)(x-2
va rog ajutatima . ne pune note !!!!!!!!

Răspuns :

Teodoraalbei
a)x²+2x-x-2+2x+6=x²+3x+4
b)-3x²+3x-3-3x²-2x+1=-6x²+x-2
c)x²-xy+2xy-2y²-x²+2y²=xy
d)-x³+x²-x²+x+x³+2x²+2x+4=2x²+3x+4
e)2x³+2x²+6xy+4x-3x²-3x-9y-6-x³+2x²+x-2=x³+x²+6xy+2x-9y-8

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