For how many integers n is `(7n-26)(5n+11)` a negative number ?

For how many integers n is sqrt(9-(n+2)^2) a real number?

For how many positive integers n is it true that the sum of 13/n, 18/n and 29/n is an integer?

For how many integers n between 5 and 20, inclusive, is the sum of 3n, 9n and 11n greater than 200?

For how many positive integers ‘n’, n^3-8n^2+20n-13 is a prime?

For how many positive integer values of n will (n^(2) + 5n + 12) be divisible by (n + 5) ?

(x+1) is a factor of x^(n)+1 only if n is an odd integer (b) n is an even integer n is a negative integer (d) n is a positive integer

If A={n:(n^(3)+5n^(2)+2)/(n) is an integer and 'n' itself is an integer,then the number of elements in the set A is:

If A={n:(n^(3)+5n^(2)+2)/(n) is an integer and n itself is an integer}, then the number of elements in the set A is

(x+1) is a factor of x^n+1 only if (a)n is an odd integer (b) n is an even integer (c )n is a negative integer (d)n is a positive integer