Answer:
-4(-3 + 5) = -4(2) = -8
-(2 · -5y) = -(-10y) = 10y
6(-5 - 4) = 6(-9) = -54
Explanation:
Calculate within parentheses, then apply rule
-(-a) = a or -a(b) = -ab or a(-b) = -ab
-4(-3 + 5) = -4(2) = -8
-(2 · -5y) = -(-10y) = 10y
6(-5 - 4) = 6(-9) = -54