Answer:
10c^2-c-2
Step-by-step explanation:
FOIL method
or just multiply all of the numbers by each other, if you get 4 numbers you did it right then simplify;
(5c+2)(2c-1) 5c*2c; 2*-1; -1*5c; 2*2c = 10c^2, -2, -5c, 4c, simplify, 10c^2 -c -2. Hope this helps :)
