need ko na po ang answer ngayun plsss

Answer:
n²+2nm+m²
n²-2nm+m²
x²-y²
a³+3a²b+3ab²+b³
a³-3a²b+3ab²-b³
Step-by-step explanation:
Answer:
1. [tex]n^{2} + 2mn + m^{2}[/tex]
2. n² - 2mn + m²
3. x²-y²
4. a³ + 3a²b + 3 ab² + b³
5.a³ - 3a²b + 3 ab² - b³
Step-by-step explanation: