Statement:

A company advertises on Radio and TV for its product. the profit based on these advertisement has been

determine in 1000 is as P(x,y)=-2x^2-xy-y^2+8x+9y+10

where x is the amount spent on Radio and y is the amount spend on TV respectively. How much money should

be spent on both advertisement to maximize the profit? another

Friends I CANT SOLVE itjust give me method

Please friends this time help me!

thanks a lot