I need help with these 2 problems I don't know if they are correct.

1) The expression V(x)=x^3-13x+12 represents the volume of a rectangular safe in cubic feet. The length of the safe is x+4. What linear expressions with integer coefficients could represent the other dimensions of the safe? Assume that the height is greater than the width.

For this I got (x-1) (x-3) (x+4)

Question

I need help with these 2 problems I don't know if they are correct.

1) The expression V(x)=x^3-13x+12 represents the volume of a rectangular safe in cubic feet. The length of the safe is x+4. What linear expressions with integer coefficients could represent the other dimensions of the safe? Assume that the height is greater than the width. 

For this I got (x-1) (x-3) (x+4)

anonymous · Answer

2) The volume in cubic inches of a bow can be expressed as the product of its three dimensions. V(x)=x^3-16x^2+79x-120. The length is x-8. Find linear expressions with integer coefficients for the other dimensions. Assume that the width is greater than the height.

For this I got (x-3) (x-5) (x-8)