Question

if x + y = 3 , $x^{2}$+$y^{2}$ = 5 then xy is , please someone answer.....

Answer 1

Answer:

2

Step-by-step explanation:

$x + y = 3 \\ {x}^{2} + {y}^{2} + 2xy = 9 \\ 5 + 2xy = 9 \\ 2xy = 4 \\ xy = 2$

Answer 2

Answer:

x+y=3

x

2

+y

2

+2xy=9

5+2xy=9

2xy=4

xy=2