The rectangle below has an area of x^2+8x+15x square meters and a width of x+3 meters. What is the length.

Question

it needs to be in an expression form.

Answer 1

I am going to assume you mean x² + 8x + 15.

Area = Length * Width

Length = (x² + 8x + 15)/(x + 3) = (x + 5)(x +3)/(x + 3) = x + 5