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Unformatted text preview: ax 2 + bx + c = 0. 3) Try factoring. 4) If factoring seems too difficult or impossible, use the quadratic formula. Completing the square can also be used. The solutions of a quadratic equation can always be found using the quadratic formula. They cannot always be found by factoring. 5 Solve using the quadratic formula. ( 29 ( 29 2 2 2 1) 7 3 2) 9 4 3) 7 2 5 3 1 1 1 1 4) 2 4 2 x x x x x x x x x x x + = + = + + = ++ = 6 The current in a typical Mississippi River shipping route flows at a rate of 4 mph. In order for a barge to travel 24 mi upriver and then return in a total of 5 hr, approximately how fast must the barge be able to travel in still water? 7...
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 Spring '10
 Nelson
 Quadratic Formula

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