Question

find xy if, x+y=3 ,x square + y square = 5

Answer 1

Answer:

XY=2

Step-by-step explanation:

x+y=3

x^2+y^2=5

x sq plus ysq can be written as (x+y)^2-2xy

we know x+y= 3

3^2-2xy=5

9-2xy=5

-2xy=5-9

-2xy=-4

2xy=4

XY=2

............ .....................