3x² + 4 = 0 any help would be excellent thanks
Last edited by gracey; Dec 18th 2007 at 11:15 AM.
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two methods if you are fimmilar with completing the sqaure it should be obvious that you will get a minimum when can you finish it form there ? for the second part, if your draw a reasonable sketch of the of the graph it should be obvious.
thanks
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