You must follow the steps below:
1. First, you should apply the dstributive property:
=(x²-<span>8x+15/3x)(8x/x-3)
=(8</span>x³-64x²+120x)/3x(x-3)
2. As you can see, the common factor in the numerator is: "8x". So, you have:
=8x(x²-8x+15)/3x(x-3)
3. Then, when you simplify, you obtain:
=8(x²-8x+15)/3(x-3)
Therefore, the solution is: 8(x²-8x+15)/3(x-3)
Answer:

Step-by-step explanation:
Easy. I got it right.
The length of the rectangle is 30 m
The width of the rectangle is 20 m
The sidewalk is 3m wide on all sides, so
length of sidewalk = 30+6 =36 m
Width of sidewalk = 20+6 = 26 m
Area of rectangle = 
Area of rectangle =
Area of rectangle including sidewalk = 
Hence, area of sidewalk alone = area of rectangle with sidewalk - area of rectangle
Surface Area =
m²
I believe that your answer is option b - x = -7