the width, w, of a rectangular garden is x - 2. The area of the garden is x^3 - 2x -4. What is an expression for the length of the garden?
a. x^2 - 2x - 2
b. x^2 + 2x - 2
c. x^2 - 2x + 2
d. x^2 + 2x + 2

Question

the width, w, of a rectangular garden is x - 2. The area of the garden is x^3 - 2x -4. What is an expression for the length of the garden?
a. x^2 - 2x - 2
b. x^2 + 2x - 2
c. x^2 - 2x + 2
d. x^2 + 2x + 2

campbell_st · Answer

easiest thing is some polynomial or synthetic division

anonymous · Answer

idk how to do that.

campbell_st · Answer

ok... the the only thing to do is the multiplying 

x - 2 by each of the answer options to get the area equation 

so it can be done as 

$$x( x^2 - 2x - 2) - 2(x^2 - 2x -2) $$

which gives 

$$x^3 - 4x^2 .... $$

so its not A

juest repeat the process