Doanh nghiệp có các hàm số sau: P= 2.000-2Q; TC=2Q2+500 (P: đvt/đvq; Q: đvq; TC, TR: đvt). Để tối đa hóa lợi nhuận thì doanh nghiệp sẽ sản xuất ờ
sản lượng Q, giá bán P và lợi nhuận cực đại là bao nhiêu?

The answer would he -4,-2 because the points are just on the opposite side. since the x axis is +4 it's going to he -4 and since the y axis is -2 it stays there because whaen rotated it stays in the third quadrant

7days is 168 hours in decimal form it is just 168 there is no decimal form for this because it is like 168.0 and there is no number you are dividing it by for it to be a decimal.hope this