Question

answer me this question please​

Answer 1

Step-by-step explanation:

Que 1

1. a^2-b^2

2. a^3+b^3+3ab(a+b)

4. k^3+4^3+3×4k(k+4)

k^3+64+12k^2 +84k

= k^3+12k^2+84k+64

5. a^3-b^3-3ab(a-b)