What is 4 less than a certain integer multiplied by 5 more than the multiplier, and the product is less than the square of the integer?

Question

If 4 less than a certain integer is multiplied by 5 more than the integer, the product is 8 less than the square of the integer. Find the integer.

Answer 1

(N-4)(N+5)=N²-8

N²+N-20=N²-8

N=12

Go back and make sure that 12 works!