If x + y = 5 and X2 + y2= 15,then xy is equal to
Answers
Answered by
1
Answer:
(x+y)*2=x^2+y^2+2xy
5^2=15+2xy
25-15=2xy
10=2xy
xy=5
Similar questions
Social Sciences,
5 months ago
Math,
5 months ago
Math,
10 months ago
Math,
10 months ago
Math,
1 year ago