Terms that have identical variable parts or two or more constant terms

The polygon tool to draw a rectangle with a length of 5 units and a height of 3 units. one of the sides of the rectangle falls on line ab , and the rectangle has a vertex of a. each segment on the grid represents 1 unit.

What is 32+4 x (16 x 1/2) -2 show your work}

Need on this one asap im almost done with this subject