Answer: In your problem, you said that they are squared. However, it is not written as squared. We just have to multiply them.
We can use the FOIL method.
(3b - 5c)(3x + 5y)
6bx + 15by - 10cx - 25cy
There are no like terms, so that expression is our final answer.
The answer is C
5.26x10^3 = 5,260
the area of the cuboid is 560
the perimeter of the cuboid is 2240
