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Weird Expression (Posted on 2019-06-01) Difficulty: 3 of 5
Show that, regardless of what integers are substituted for x and y, the expression

x5 - x4y - 13x3 y2 + 13x2 y3 + 36xy4 - 36y5

is never equal to pq, where p and q are prime numbers.

No Solution Yet Submitted by Danish Ahmed Khan    
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  Subject Author Date
No Subjectxdog2019-06-01 14:10:05
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