Question

Cum se descompune:
2kpatrat+3k+1

Answer 1

$2k^2+3k+1 =2k^2+2k+1+k=(k+1)^2+k$

Answer 2

$2k^2+3k+1=2k^2+k+2k+1=k(2k+1)+(2k+1)= \\ \\ =(2k+1)(k+1)$