Question 44126
Below is the graph of y=3x^3-32x^2+81x-70
{{{ graph( 300, 200, -10, 10, -100, 100, 3x^3-32x^2+81x-70) }}} 
Below is the graph of y=(3x-a)(x-2)(x-7) when a=3
{{{ graph( 300, 200, -10, 10, -100, 100, (3x-a)(x-2)(x-7)) }}} 
Note they are exactly the same, so (3x-a)(x-2)(x-7)= 3x^3-32x^2+81x-70 is true when a=3.
You are correct. Well done!

I hope this helps 
P.S. I am trying to start up my own homework help website. I would be extremely grateful if you would e-mail me some feedback on the help you received to adam.chapman@student.manchester.ac.uk