Rozwiąż funkcje liniowe:
A) (x-1)do kwadratu -7>xdo kwadratu - 6
B) (x-2)(x+2)<-3x+8
C) (x+2)do kwadratu -(x-1)do kwadartu <21
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a) x do kwadratu-1-7> x do kwadratu -6
x do kwadratu - x do kwadratu > -6 +1+7
0>2 ??
b) x do kwadratu- 2 do kwadratu<3x+8
x do kwadratu - 3x< 8+4
x do kwadratu - 3x< 12
c) x do kwadratu +4 - x do kwadratu- 1 < 21
o< 21-4+1
0 <18