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6

Set 5: Polynomial Functions (Intermediate)

Explanation

Answer: D

PROBLEM

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

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

A.

20

B.

9

C.

11

D.

10

✓ Correct

Detailed Explanation

Choice D is the best answer. (5x + 2) + (5x + 4) = 10x + 6. Coefficient of x is 10.

Why others are wrong:
A: 20 is incorrect because it does not satisfy the equation.
B: 9 is incorrect because it does not satisfy the equation.
C: 11 is incorrect because it does not satisfy the equation.
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