Wyznacz zbior wszystkich x , dla ktorych wielomian : W(x) = 2x2 - 3x osiega wartosci ujemne
2x2-3x<o
x(2x-3)<0
x=0 x=3/2
czyli potem wykres xnalezy od( 0,3/2)
W(x) = 2x^ - 3x
2x^ - 3x < 0
x(2x - 3) < 0
x = 0
2x - 3 = 0
2x = 3
x = 3/2
x € (0 ; 3/2)
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2x2-3x<o
x(2x-3)<0
x=0 x=3/2
czyli potem wykres xnalezy od( 0,3/2)
W(x) = 2x^ - 3x
2x^ - 3x < 0
x(2x - 3) < 0
x = 0
2x - 3 = 0
2x = 3
x = 3/2
x € (0 ; 3/2)