Hi guys, please help me answer this.

Sum and Differences of two squares. (with solution)

1. a²-121
2. 25e² - 16
3. 49f² - 4g²
4. 4m⁴ n(to the power of 8)- 49q(to the power of 6)
5. 144h² - 44i²

THANKS I REALLY DON'T KNOW HOW TO SOLVE​