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delta= 0
x0= -b/2a
x0=-8/2*(-16)
x0=1/4
5) x(x-3)>0
x>o i x-3>o
x>3
4)-x kwadrat +1 +4x -3<0
-x kwadrat +4x -3<0
delta+ 4
x1= -b -pierwiastek z delty/ 2a x2= -b+ pierwiastek z delty/2a
x1=3 x2=1
3) x< badź rwówne 16
x< b. row. pierwiastkowi z 16
x<b.rown. 4
2) -4x kwadrat-12x+16
delta= -134
brak miejsc zerowych
1)