Find where the first mistake occurs. Factor the polynomial: 15n^(2)-27n-6 

Step 1: 3(5n^(2)-9n-2)

Step 2: 3(5n^(2)-10n+1n-2) 

Step 3: 3(5n(n-2)+1(n-2)) Step 4: 3(5n+1)(n-2)