Two firms in the market sell different products, in this case, laptops dell and HP, the demand equation for Dell is Pdell ( pdell, PHP)=100-2 Pell+ PHP. The cost of production for Dell is $10 per unit sold. HP has an analogous function PHP(PHP, pdell)=100-2PHP +pdell, but they have a higher cost of production of $30 a unit, find the nash equilibrium that maximizes their profits if they announce their process simultaneously