The area of a rectangular porch is (9x + 18) square units. factor 9x + 18 to find the possible dimensions of the porch. length = width =

To factor 9x + 18 you need to find a common factor that goes into both terms. In this case, both terms can be divided by 9, which means 9 goes on the outside of the bracket. Now, we just put whatever 9 needs to be multiplied by to get 9x and 18 inside the bracket, so your finished result is 9(x + 2). This means that the length can be 9 and the width can be x + 2, as the multiply together to get 9x + 18.
I hope this helps!