Question

solution of (3q+1)cube​

Answer 1

Answer:

use Euclid's lemma to prove this

Answer 2

Answer:

x= 3q + 1

x= 3q + 1then, x3 = (3q + 1)3

x= 3q + 1then, x3 = (3q + 1)3= 27q3 + 27q2 + 9q + 1

x= 3q + 1then, x3 = (3q + 1)3= 27q3 + 27q2 + 9q + 1= 9 q (3q2 + 3q + 1) + 1

x= 3q + 1then, x3 = (3q + 1)3= 27q3 + 27q2 + 9q + 1= 9 q (3q2 + 3q + 1) + 1= 9m + 1, where m = q (3q2 + 3q + 1)

HOPE IT HELPS YOU