Question

the volume of a rectangular prism is represented by the function x3+6x-16. the length of the box is x + 2 , while the height is x + 8. find the expression repressing the width of the box

Answer 1

x^2+6x-16= volume
LWH=volume
(x+2)W(x+8)=x^2+6x-16
W=(x^2+6x-16)/[(x+8)(x+2)]=[(x+8)(x-2)]/{(x+8)(x+2)}=
W=(x-2)/(x+2)