The difference of two numbers is 4. If the difference of their reciprocals is 
, find the two numbers.
Let the first number be ‘X’, so the other number will be ’(X+4)’.
On simplifying further,
X2 + 4X – 21 = 0
On applying Sreedhracharya formula
∴ X = –7 or X = 3.
∴ The numbers are –7 & –3 or 3 & 7.
4