Question
Apply the Distributive Property to show 3i(2i−3i−5)
in its simplest form.(1 point)
Responses
3+15i
3 plus 15 i
6−15i
6 minus 15 i
3−15i
3 minus 15 i
6+15i
in its simplest form.(1 point)
Responses
3+15i
3 plus 15 i
6−15i
6 minus 15 i
3−15i
3 minus 15 i
6+15i
Answers
GPT-4o mini
To simplify \( 3i(2i - 3i - 5) \) using the Distributive Property, follow these steps:
1. First, simplify the expression inside the parentheses:
\[
2i - 3i - 5 = -i - 5
\]
2. Now distribute \( 3i \) to each term in the expression:
\[
3i(-i) + 3i(-5)
\]
3. Calculate each term:
\[
3i(-i) = -3i^2
\]
Since \( i^2 = -1 \), we have:
\[
-3i^2 = -3(-1) = 3
\]
4. For the second term:
\[
3i(-5) = -15i
\]
5. Now combine the results:
\[
3 - 15i
\]
Thus, \( 3i(2i - 3i - 5) \) simplifies to **3 - 15i**.
The correct response is:
**3 - 15i**.
1. First, simplify the expression inside the parentheses:
\[
2i - 3i - 5 = -i - 5
\]
2. Now distribute \( 3i \) to each term in the expression:
\[
3i(-i) + 3i(-5)
\]
3. Calculate each term:
\[
3i(-i) = -3i^2
\]
Since \( i^2 = -1 \), we have:
\[
-3i^2 = -3(-1) = 3
\]
4. For the second term:
\[
3i(-5) = -15i
\]
5. Now combine the results:
\[
3 - 15i
\]
Thus, \( 3i(2i - 3i - 5) \) simplifies to **3 - 15i**.
The correct response is:
**3 - 15i**.