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Mathematics 7 Online
OpenStudy (anonymous):

Which equation shows the quadratic formula used correctly to solve 7x2 = 9 + x for x? https://media.education2020.com/evresources/3111-03-08/mc002-1.jpg https://media.education2020.com/evresources/3111-03-08/mc002-2.jpghttps://media.education2020.com/evresources/3111-03-08/mc002-4.jpg https://media.education2020.com/evresources/3111-03-08/mc002-3.jpg

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