Answer:
10k^2 - 13k - 3
Step-by-step explanation:
( 5k + 1 ) ( 2k - 3 )
= 5k ( 2k - 3 ) + 1 ( 2k - 3 )
= 10k^2 - 15k + 2k - 3
= 10k^2 - 13k - 3
