Answer:
[(5z+3 -3z)5z+3 - 3z
combine 5z and _3z to get 2z
(2z+3)x5z +3 - 3z
use the distributive property to multiply 2z + 3 by 5
(10z + 15)z + 3 - 3z
use the distributive property to multiply 10z+15 by z
10z2+15z+3-3z
combine 15z and -3z to get 12z
10z2+12z+3
Step-by-step explanation:
