question_answer

If \[4{{x}^{2}}+{{y}^{2}}=40\]and \[xy=6,\]then find the value of\[2x+y\].

A) \[\pm \,6\]         

B) \[\pm \,2\]

C) \[\pm \,8\]                     

D) \[\pm \,10\]

E) None of these