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Mathematics 16 Online
OpenStudy (viixxen):

Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. x^2 - 21 = -4x a.) 7, 3 b.) -7, 3 c.) 7, -3 d.) -7, -3 Thanks! (:

OpenStudy (zzr0ck3r):

This is plug and play, what do you not understand?

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