Question

find two positive numbers which have a difference of 5 and whose product is 84

Answer 1

12*7=84
and difference between them is 5

Answer 2

Let those numbers be x and y...
Now acc. To que.
X-y=5
Y=x-5.....(1)
Also.... xy=84.....(2)
From (1) and (2) we get....
X(x-5)=84
x^2-5x=84
x^2-5x-84=0