4x(2x^3-7x^2+x) idfk how to do this

I’m really confused and need to learn this

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas

Can someone me with this graph problem by the way i need to know the answers by today since this assignment is due ! !