If x+y=25 and x2y3 + y2x3=25, what is the value of xy?  Choose one
A) 1	B) 2	C) 3	D) 4	E) 5
xy=1   1s x+y=25   x2y3+y2x3=25   x2y2(y+x)=25   Substituting x+y   x2y2=1   xy=1   1NSWER:1
<result>A</result>
If x+y=25 and x2y3 + y2x3=25, what is the value of xy?