PLS HELP ME!!
Simplify (#3):

Answer:
-2c^2+4c
Step-by-step explanation:
4c^2+6c-6c^2-2c
combine like terms
4c^2-6c^2= -2c^2 and 6c-2c=4c
so
-2c^2+4c is the simplest form and the answer