-5x*8x^7 I need help with this one, i tried putting it in the calculator but it shows up as a graphed answer... I needs the helps!

-5x*8x^7 = (-5)(8)*x*x⁷ = -40x⁸

Thank you, but the Dummy next to me said it was zero and i was like "SURE" and now, it's wrong, THANKS BUDDY

Oh I see talking smack right next to me eh?