Answer:
Hi! I noticed some couldn't read the handwriting of the other answer but I could so I interpreted it to here. I also added the second part. Hope this helps!
6x^3-14x^2+12x-16
b) No. Because the first parentheses in both of the equations are not the same and that entirely changes the course of the rest of the equation. In the 2nd equation it is 4x multiplied by 3x which gets 12x^2, already differing from the first equation.
Explanation:
a) (2x-4) (3x^2-x+4)
2x (3x^2-x+4) -4(3x^2-x+4)
6x^3-2x^2+8x-12x^2+4x-16
6x^3-14x^2+12x-16