To determine which option correctly demonstrates polynomial subtraction, we need to perform the subtraction for the expression \((2x^2 + 6x + 1) - (3x^2 + 3x + 9)\).
Let's calculate it step by step:
-
Start with the original expression:
\((2x^2 + 6x + 1) - (3x^2 + 3x + 9)\) -
Distribute the negative sign:
\(2x^2 + 6x + 1 - 3x^2 - 3x - 9\) -
Combine like terms:
- Combine \(2x^2\) and \(-3x^2\):
\(2x^2 - 3x^2 = -x^2\) - Combine \(6x\) and \(-3x\):
\(6x - 3x = 3x\) - Combine \(1\) and \(-9\):
\(1 - 9 = -8\)
- Combine \(2x^2\) and \(-3x^2\):
-
Combine everything: \(-x^2 + 3x - 8\)
Now let's look at the provided responses:
-
Response 1: \((2x^2 + 6x + 1) - (3x^2 + 3x + 9) = -x^2 + 3x - 8\)
This is correct. -
Response 2: \((2x^2 + 6x + 1) - (3x^2 + 3x + 9) = -5x^2 + 3x - 8\)
This is incorrect. -
Response 3: \((2x^2 + 6x + 1) - (3x^2 + 3x + 9) = x^2 + 3x + 8\)
This is incorrect. -
Response 4: \((2x^2 + 6x + 1) - (3x^2 + 3x + 9) = 5x^2 + 9x + 10\)
This is incorrect.
The correct response that accurately demonstrates polynomial subtraction is:
Response 1: \((2x^2 + 6x + 1) - (3x^2 + 3x + 9) = -x^2 + 3x - 8\)