Final answer:
To apply the distributive property, we multiply each term inside the parentheses by the term outside the parentheses, and then combine like terms.
Step-by-step explanation:
To apply the distributive property, we multiply each term inside the parentheses by the term outside the parentheses. In this case, we have:
12 * 6e = 72e
12 * -3f = -36f
12 * -43 = -516
Now, we multiply each term inside the second set of parentheses:
21 * 6e = 126e
21 * -3f = -63f
21 * -34 = -714
Combining like terms, we get the equivalent expression:
72e - 36f - 516 + 126e - 63f - 714
Simplifying further, we have:
(72e + 126e) + (-36f - 63f) + (-516 - 714)
198e - 99f - 1230
Therefore, the correct answer is (b) 6e - 3f - 41.2.