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16x>2 ?:2
x>8
16x-1x>-1
15x>-1 _1
x<15
-3x² + 7x < -2
9x+7x < -2
16x < -2 / : 16
x > 8
b) 4x² > x-1
16x-x> -1
15x> -1 / : 15
x< jedna piętnasta. x d