SOLUTION: If (x - y)² = 40 and x² + y² = 60, then xy=
Algebra.Com
Question 417589: If (x - y)² = 40 and x² + y² = 60, then xy=
Answer by sudhanshu_kmr(1152) (Show Source): You can put this solution on YOUR website!
(x - y)² = 40
=> x² + y² -2xy = 40
=> 60 -2xy = 40
=> 2xy = 20
=> xy = 10
xy = 10
RELATED QUESTIONS
5) if (x-y)^2=40 and x^2+y^2=60, then... (answered by reviewermath)
If in a triangle xy=xz and angle y=60,then angle x is equal to... (answered by stanbon)
If xy = 2 and x^2 + y^2 = 5 , then x/y + y/x =... (answered by nerdybill)
If xy=6 and x-y=9, then... (answered by Alan3354)
Prove that if |x + y| = |x| + |y| then xy >... (answered by ikleyn)
If x^2 +y^2 = 40 and xy = 16, compare: A.) (x - y)^2... (answered by venugopalramana)
XY=14 and x+y=9 then x-y=
(answered by anirudhreddy)
If x^2 + y^2 = 40 and xy = 12, then x + y =
A. 7. B. 8. C. 7 or −7. D. 8 or... (answered by checkley77)
if x-y=-6 and xy=4, then find the value of... (answered by ankor@dixie-net.com)