Answer:
3a⁴b² units²
Explanation:
Area of rectangle: L x B
=> Area of rectangle: LB
=> Area of rectangle = a²b x 3a²b
=> Area of rectangle = a² x b x 3 x a² x b
=> Area of rectangle = a² x b x 3 x a² x b
=> Area of rectangle = a² x a² x b x b x 3
=> Area of rectangle = a⁴ x b² x 3
Therefore, the area of the rectangle is 3a⁴b² units²
Hoped this helped.