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Mathematics 22 Online
OpenStudy (anonymous):

PLEASE HELP ME AND WILL GIVE MEDAL AND FAN! pLEAse??! 2. Justify each step of the proof. Conjecture: If 2(x2 + 5) = 60, then x is 5 or –5. 1. 2(x2 + 5) = 60 1. 2. 2x2 + 10 = 60 2. 3. 2x2 = 50 3. 4. x2 = 25 4. 5. x = ±5 5.

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