Question

Two consecutive even whole numbers have a product of 360. What is the smaller of the

two numbers

Answer 1

let one even number be N
and another even number be N(N+2)

N(N+2)=360
n^2+2n-360=0
n^2+20n-18n-360=0

value of N= -20 ,18
but -20 not accepted
smaller number 18