A company produces two types of solar panels per year: x thousand of type A and y thousand of type B. The revenue and cost equations, in millions of dollars, for the year are given as fo R(x,y)=3x+2y C(x,y) x2-4xy+9y2+15x-72y-8 Determine how many of each type of solar panel should be produced per year to maximize profit. The company will achieve a maximum profit by selling solar panels of type A and selling solar panels of type B.