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How about easier method:
x^3-x=n*24 -> where n is integer number
x(x^2-1)=n(5^2-1)
so n=5 and answer is yes
- by alexshv
Mon Jul 05, 2010 12:33 pm- Forum: Quantitative Reasoning
- Topic: Question about Example in MGMAT Num Prop. Book
- Replies: 4
- Views: 2000