Answer:
16a^2 - 9b^6
Step-by-step explanation:
16a^2 - 9b^6 ---> 16a² is the square of 4a; 9b^6 is the square of 3b³
This is the difference of 2 squares
4g - 16h ---> 4g and 16h are not perfect squares.
25m^2 + 100n^2 ---> this is a sum of squares, not a difference of squares
2x^2 - 4y^2 ---> 2x² is not a perfect square
Answer: 16a^2 - 9b^6
