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Mathematics 23 Online
OpenStudy (anonymous):

Select all of the following that are quadratic equations. 7x2+ 14x= 0 x3- 3x2+ 1 = 0 5x- 7 = 0 x2+ 3x-5 = 0 x- 5 = 9x+ 7 x2-x= 3x+ 7

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