Final answer:
To find B - C, subtract C from B using the given expressions for each. Simplify the result to get B - C in standard form, which is a quadratic equation q² - 4q + 2.
Step-by-step explanation:
The student is asking to find the expression for B - C given that B = 1 - q and C = 3q - q² - 1. We can combine the two expressions to create one equation by subtracting C from B.
Let's calculate B - C:
- B = 1 - q
- C = 3q - q² - 1
- B - C = (1 - q) - (3q - q² - 1)
- B - C = 1 - q - 3q + q² + 1
- B - C = q² - 4q + 2
This is the standard form of the expression representing B - C.