Odpowiedź
P= (7-y-2)*y + (y-2)*(y+1)
P= 7y-y^2-2+y^2+y-2y-2
P=7y-2+y-2y-2
P=6y-4
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Odpowiedź
P= (7-y-2)*y + (y-2)*(y+1)
P= 7y-y^2-2+y^2+y-2y-2
P=7y-2+y-2y-2
P=6y-4