Question

for how many natural n such that n square - 9n + 27/n - 7 is a natural number

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Answer 1

Answer:

4a+b=27,4a-b=5=>(a,b)=(4,11)=>n=7 4a+b=45,4a-... ... Sign In. How many number of positive integer n are there such that n+9,16n+9,27n+9 are perfect square?

Answer 2

Hey mate,

Solution with explanation :

36/12=3

so , answer will be 5....

Hope it helps.