Question

A cuboid has the width of x cm. The length of the cuboid is 4cm more than the width. The height is 4cm less than the width. The volume of the cuboid is 500cm^3. Show that x satisfies the equation x^3-16=500

Answer 1

The answer is; x(x+4)(x-4)=500 I don't know how it is, I just guess and it works