Phép nhân các đa thức chứa 2 đơn thức: mô hình diện tích

An area model for a rectangle that has a height of x plus one and a width of x plus seven. The rectangle is broken into four rectangles to isolate each term in the height and the width. The top left rectangle has a height of x and a width of x. The top right rectangle has a height of x and width of seven. The bottom left rectangle has a height of one and a width of x. The bottom right rectangle has a height of one and a width of seven.