Find the number of ordered pairs $(m,n)$ of integers that satisfy \[mn = 2m + 4n.\]

Question

2 years ago

11

Find the number of ordered pairs $(m,n)$ of integers that satisfy \[mn = 2m + 4n.\]

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Mathematics

1 answer:

Anna35 [415] · Answer 1 · 2022-08-30T10:39:32+03:00

Anna35 [415]2 years ago

5 0

There are four pairs (m,n) that work: (5,10), (6,6), (8,4), and (12,3).