Geometry the area of a rectangle is x 3 + 8x 2 + 13x – 12 square units. the width of the rectangle is x + 4 units. what is the length of the rectangle?

If the width is x+4, then the length is x²+4x-3, because the product of the two, i.e, it's area, would then be x³+4x^2+4x^2+16x-3x-12, which equals x^3+8x^2+13x-12. ☺☺☺☺