in column 1 is the number outside the bracket and the addition or subtraction of the number inside the bracket
first in column 2 you will multiply the number that is outside the bracket
in column 3 that is when I give the number outside the bracket multiply by the number inside the bracket
in column 4 this is when you have finished multiplying the numbers you minus or add them to give ur final answer
column 5 is your final answer :-)