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6

Set 2: Polynomial Functions (Intermediate)

Explanation

Answer: C

PROBLEM

Add: (2x + 5) + (4x + 4). What is the coefficient of x in the result?

Add: (2x + 5) + (4x + 4). What is the coefficient of x in the result?

A.

5

B.

4

C.

6

✓ Correct
D.

7

Detailed Explanation

Choice C is the best answer. (2x + 5) + (4x + 4) = 6x + 9. Coefficient of x is 6.

Why others are wrong:
A: 5 is incorrect because it does not satisfy the equation.
B: 4 is incorrect because it does not satisfy the equation.
D: 7 is incorrect because it does not satisfy the equation.
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