Which of the following is equivalent to (5c - 2c)(d + 4)?
(5c - 2c)(d + 4)
Simplify the expression in the first set of parentheses: 5c - 2c = 3c:
= 3c(d + 4)
Use the distributive property:
= 3c(d) + 3c(4)
= 3cd + 12c
+449 
