Question

if x+y=5 and xy=4 find x-y using suitable identities​

Answer 1

The answer is given below......

Answer 2

$x+y=5.................(1)\\xy=4=>x=\frac{4}{y}.....................(2)\\\\Now,\\substituting\ the\ value\ of\ x\ in\ eq(1),\ we\ get-\\ \frac{4}{y}+y=5\\\\So,\frac{4}{$