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x<0
b) 2x²<0/:2²
x<0
c) ½x²>/0:½²
x>0
d) -¼x²>/0:-¼²
x>0
moożee cooś takiego .
x2>0
x>1
b)2x2<0
x2<0
x<1
c)1/2x2>0
x2>0
x>1
d)-1/4x2>0
x2<0
x<1