If the equation 2x^2+4x y+7y^2-12 x-2y+t...

If the equation `2x^2+4x y+7y^2-12 x-2y+t=0,w h e r et` is a parameter has exactly one real solution of hte form `(x ,y)` , then hte sum of `(x+y)` is equal to ______.

Similar Questions

Explore conceptually related problems

If the equation x^(2)+y^(2)-10x+21=0 has real roots x=alpha and y=beta then

If f(2x+3y,2x-7y)=20x, then f(x,y) equals

If the equation x^(2)+9y^(2)-4x+3=0 is satisfied for all real values of x and y, then

If the equation x^(2) + y^(2) -2xy sin^(2)theta=0 contains real solution for x and y, then

If f(2x+3y,2x-7y)=20x, then f(x,y) equals:

If x=3k-2,y=2k is a solution of equation 4x-7y+12=0 then value of k is

If x =3k-2 ; y =2k is a solution of equation 4x-7y+12=0 then find the value of k

On of the factors of 4x ^(2) + y ^(2) + 14 x - 7y - 4 xy +12 is equal to