Question
The operation *is defined as u* b=2a-b. For example, 3*4=2x3-4=2 Find
1. - 2*3
2. 2*-3
1. - 2*3
2. 2*-3
Answers
GPT-4o mini
To solve this using the defined operation \( a * b = 2a - b \), we can calculate each expression step by step.
1. **Calculating \( -2 * 3 \)**:
\[
-2 * 3 = 2(-2) - 3 = -4 - 3 = -7
\]
2. **Calculating \( 2 * -3 \)**:
\[
2 * -3 = 2(2) - (-3) = 4 + 3 = 7
\]
So the answers are:
1. \( -2 * 3 = -7 \)
2. \( 2 * -3 = 7 \)
1. **Calculating \( -2 * 3 \)**:
\[
-2 * 3 = 2(-2) - 3 = -4 - 3 = -7
\]
2. **Calculating \( 2 * -3 \)**:
\[
2 * -3 = 2(2) - (-3) = 4 + 3 = 7
\]
So the answers are:
1. \( -2 * 3 = -7 \)
2. \( 2 * -3 = 7 \)