The point P is so located in the interior of a rectangle that the distance of P from a corner of the rectangle is 5 yards, from the opposite corner 14 yards, and from a third corner 10 yards. What is the distance of P from the fourth corner?

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.