The Johnsons 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 a dimension of x + 8 by x - 2 feet. what is the area of the region of the yard that they want to cover with new grass?
To fond the area need to be grassed, find the area of the yard and subtract the area of the pool/patio. (3x - 5)(4x - 10) = 12x^2 - 30x - 20x + 50 = 12x^2 - 50x + 50 Area of yard
