show that (x+1)(x+2)(x+4) can be written in the form ax^3+bx^2+cx+d where a, b, c and d are all positive integers

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

Which equation represents the function on the graph?

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.