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5

Set 2: Polynomial Functions (Advanced)

Explanation

Answer: B

PROBLEM

Subtract: (9x + 5) - (3x + 4). What is the coefficient of x in the result?

Subtract: (9x + 5) - (3x + 4). What is the coefficient of x in the result?

A.

12

B.

6

✓ Correct
C.

7

D.

5

Detailed Explanation

Choice B is the best answer. (9x + 5) - (3x + 4) = 6x + 1. Coefficient of x is 6.

Why others are wrong:
A: 12 is incorrect because it does not satisfy the equation.
C: 7 is incorrect because it does not satisfy the equation.
D: 5 is incorrect because it does not satisfy the equation.
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