Question

[4 - (3c - 1)][6 - ( 3c - 1)]

Answer 1

= 9c2 - 36c + 35

I am not 100% that this is what you are after.

Answer 2

[4 - (3c - 1)][6 - ( 3c - 1)] = 9c² - 36c + 35

~Hope I helped!~