Simplify the following expression: 12x^4÷3x^-2?

The area of the figure will be the sum of the areas of triangle and rectangle. The rectangle has a length of 8 8 units and a width of 4 4 units. We need to find the base and height of the triangle. Since both sides of the rectangle are 4 4 , the vertical side of the triangle is 3 3 , which is 7−4 7 − 4 .