30 points + brainliest if the answer is correct. hana is using a square piece of cardboard to make a box without a lid. she cuts 5-inch squares from each corner and folds up the edges. the finished box has a volume of 2,000 cubic inches. which equation can be used to find the dimensions of the original cardboard piece?
a: l^2−10=2,000
b: l^2−(l−5)^2=2,000
c: 5(l−10)^2=2,000
d: 5l^2−10l=2,000