Question 164995
Here is the distributive rule:

a(b + c) = ab + ac

It does not matter if a is positive or negative.

We distribute the letter a by multiply a or -a by every term inside the parentheses to remove the parentheses.  This is the purpose of the distributive rule.

SAMPLE:

-2(4 + 6) = -2(4) + -2(6) = -8 + -12 = -20