If `4x^2+ y^2= 40` and xy =6; find the value of `2x+y`

If x and y be two positive real numbers such that 4x^(2)+y^(2)=40 and xy=6 , then find the value od 2x+y .

If 4x^2+y^2=40 and xy=6,(x>0,y>0) then the value of 2x+y is: यदि 4x^2+y^2=40 और xy=6,(x>0,y>0) , 2x+y का मान ज्ञात करें :

If x^(2)+y^(2)=29 and xy=2, find the value of x+y( ii) x-y (iii) x^(4)+y^(4)

If 9x^(2)+25y^(2)=181 and xy=-6, find the value of 3x+5y

If 9x^(2)+25y^(2)=181 and xy=-6, find the value of 3x+5y

If 3x+2y=12 and xy=6, find the value of 9x^(2)+4y^(2)

If 3x+2y=12 and xy=6, find the value of 9x^(2)+4y^(2)

If 3x+2y=12 and xy=6, find the value of 9x^(2)+4y^(2)

If x = 6, y = 4 and z = 3, then find the value of x ^(2) + y ^(2) + z ^(2) - 2xy + 2 yz - 2 zx.

If 2x + y = 6 and xy = 4, then find the value of 8x^3+y^3 is: यदि 2x + y = 6 तथा xy = 4 है, तो 8x^3+y^3 का मान ज्ञात कीजिए।