Question

a yudenme porfa (k³+3k²-k)(k³+3k²+k)

Answer 1

(k³+3k²-k)(k³+3k²+k)
K^6 + 3K^5 + K^4 + 3K^5 + 9K^4 + 3K^3 - K^4 - 3K^3 - K^2
K^6 + 6K^5 + 9K^4 - K^2 ... rpt