Answer:
the formula is (n-2)180 degrees
so its 7020
You have to multiply 3 x 6.
Answer: you choke and die by the time you hit 41 left :)
So u multiply each term in the first parentheses by each term in the second parentheses.
√5 √5 + 6√5-3√5 - 3x6
Now you multiply the numbers which will get u:
5+6√5 - 3√5 - 18
Then subtract:
-13 +3√5 that’s your answer