For the function defined as follows, find all values of x and y such that both fₓ(x,y)=0 and fᵧ(x,y)=0
f(x,y)=5x²+9y²+6xy+36x-5
There are two solutions where fx(x,y)=0 and fy(x,y)=0, in order from increasing x values, when x=____ and y=____ (Type integers or simplified fractions.)