Asked by softball lover

The area of a rectangular floor is represented by 9x^2+15x square feet and the width of the floor is 3x feet. Which expression represents the length of the floor?
a. 8x ft
b(3x+5) ft
c(3+5x) ft
d(9x^2+12x)ft
I don't know how to solve this.
Help please!
Answered by Scott
divide the area by the width to get the length

(9x^2 + 15x) / 3x = ?
Answered by bobpursley
factor: 9x^2+15x
Answered by softball lover
3x^3+5x^2
Thank you so much @Scott.
Your a lifesaver!
Answered by softball lover
Thanks @Bobpursley
Answered by Damon
3x+5 !!!!
Answered by Anonymous
Ya figured that out
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