6b to the second power + 4bc + 3bc + 2c to the second power
And at the end if you add it it's 6b to the second power + 7bc + 2c to the second power
I get this by first multiplying 2b by 3b and 2c getting 6b to the second power and 4bc. Next we multiply c by 3bc and 2c to the second power and get 3bc and 2c. Then you add the like terms together go puppy out add 4bc and 3bc because the are bc at the end and you get 7bc and like that the final answer is 6b to the second power + 7bc + 2c to the second power.