2
Answer: ASet 2: Polynomial Functions (Advanced)
Explanation
PROBLEM
Subtract: (5x + 7) - (2x + 2). What is the coefficient of x in the result?
Subtract: (5x + 7) - (2x + 2). What is the coefficient of x in the result?
A.✓ Correct
3
B.
6
C.
2
D.
4
Detailed Explanation
Choice A is the best answer. (5x + 7) - (2x + 2) = 3x + 5. Coefficient of x is 3.
Why others are wrong:
B: 6 is incorrect because it does not satisfy the equation.
C: 2 is incorrect because it does not satisfy the equation.
D: 4 is incorrect because it does not satisfy the equation.