PLEASE HELP?!?!?!
Find the x and y values at the minimum of 2x^2+xy+2y^2+3y+2

And find the x and y values at the maximum of
-3x^2+2xy-4y^2+2y+7

Question

PLEASE HELP?!?!?!
Find the x and y values at the minimum of 2x^2+xy+2y^2+3y+2

And find the x and y values at the maximum of 
-3x^2+2xy-4y^2+2y+7

tkhunny · Answer

Still not willing to calculate those partial derivatives?

I'll do x.

4x+y

You do y.

anonymous · Answer

idk honestly

alekos · Answer

just differentiate with respect to y

alekos · Answer

but treat the x as a constant when you do

tkhunny · Answer

You simply CANNOT have "no idea". Something seriously wrong with that.  Unless this is a placement exam.  Then you should get this one wrong so you will be placed in the right class.

alekos · Answer

i agree