_ < x <_
What can x be in each of these cases? fill in the blanks

We subtract the entire area of the rectangle by the area of the pool.

We will use the foiling method:

(x-4)(2x+7)= 2x^2+7x-8x-21=2x^2-x-21

Then we subtract, 3x^2-14x-5-(2x^2-x-21)

Simplifying we get:

x^2-13x+16

x^2-13x+16 is the area of the grassy space.

I hope this helps!