√x2 + 1 + √x2 – 2x + 3 = 3 │ x-4 │ - │ 2–0,5x│ ≤ 3 │5- x2-6 │= x2-5x-6 x2-2x+3 : x2-4x+3 > -2 I'm so fail at math soo..would someone please help me ?
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For the first one, do you mean ? │ x-4 │ - │ 2–0,5x│ ≤ 3 You need to get rid of the mods here. You can get rid of it by establishing case analysis. The other one can be done in a similar way.
Last edited by mr fantastic; May 26th 2009 at 02:53 AM.
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