Solve the Problem $x$ Represent the Length of a Side of Each Such Square

Multiple Choice

Solve the problem.
-A rectangular piece of cardboard measuring 29 inches by 50 inches is to be made into a box with an open top by cutting equal size squares from each corner and folding up the sides. Let $x$ represent the length of a side of each such square. What is the maximum volume of this box? If necessary, round to 2 decimal places.

A) $68,059.95 \mathrm { in } ^ { 3 }$
B) $2214.64 \mathrm { in } ^ { 3 }$
C) $299.58 \mathrm { in } ^ { 3 }$
D) $3876.57 \mathrm { in } ^ { 3 }$