Answer:
47x
Step-by-step explanation:
The following shape can be cut into a rectangle and a right angle triangle.
For the rectangle:
Area: Length × Width = 14 × 3x = 42x
For the triangle:
Area: 1/2 × base × height = 1/2 × 5 × 2x = 5x
Total Area: 42x + 5x = 47x