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Answered 2008-11-01 19:28:24

Solve this problem -x squared -40x- 80 =0

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oh my god, that was the exact homework i had few days ago, but you have to have a calculator to do this. just plug in the numbers in the but ton Y=, one column you put-16t squared plus 25t plus 6 then the next column you put 0. the graph should form a parabola.


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