Answer:

Step-by-step explanation:

Apply sum of cubes formula: 


Answer:

Step-by-step explanation:
Hope this work helps
1) factor to see if you can get anything to cancel out before you multiply
2) the rest of my work is shown in the picture attached
3) the answer is n^2
Answer:
3/4 students (75/100)
Step-by-step explanation:
in total there are 100 students. 75 of them either like sports or works.