500
The Johnson's want to cover their backyard with new grass. Their backyard is rectangular, with a length of 3x-5 feet and a width of 4x-10 feet. However, their rectangular swimming pool, along with its surrounding patio, has dimensions of x+8 by x-2 feet. What is the area of the region of the yard that they want to cover with grass.
What is 11x^2-56x+66