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21 January, 06:33

Three times the square of a certain positive number exceeds six times the number by nine. find the number:

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  1. 21 January, 10:01
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    With the number being x, we have 3x^2>6 (x/9). Expanding, we get 3x^2>6x/9 and 3x^2>2x/3. Dividing by x, we get 3x>2/3 and dividing by 3 we get x>2/9
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