Question

Below are two expressions, the only difference being the presence or absence of parentheses. expression 1:expression 2:4 2×(3 4)×(5−2)4 2×3 4×5−2 calculate the difference between the two expressions; that is, evaluate both expressions then subtract one value from the other value.

Answer 1

What we are going to do is develop both expressions separately.
 Expression 1:
 42 * (34) * (5-2)
 1428 * (5-2)
 4284
 Expression 2:
 42 * 34 * 5-2
 7140-2
 7138
 The difference between both expressions is:
 7138-4284 = 2854
 answer:
 the difference between the two expressions is 
 2854