When x is a number between -1 and 0. For example, if x=-0.5: x < x3 < x2
because
-0.5 < -0.125 < 0.25
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x cubed
x3 -6
526
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Must be less than 7, 7 cubed = 343. 6? 216 + 36 = 252 5? 125 + 25 = 150 No solution in integers, 5.811 seems to be the nearest (229.992) without going into ten-thousandths.