Advanced MathEasy–MediumCoefficient of x in an expanded product
Advanced Math practice question
What is the coefficient of x when (x + 4)(x − 1) is expanded?
Answer: 3
The x terms are −x and 4x, which combine to 3x.
Common wrong answers
- If you answered 4
- 4 counts only the 4x term.
- If you answered 5
- 5 adds 4 and 1, ignoring the sign of −1.
- If you answered -4
- −4 is the constant term.
More Advanced Math questions
- Easy–Medium
If f(x) = 2x² − 3, what is f(4)? - Easy–Medium
Which expression is equivalent to (2x³)(3x⁴)? - Easy–Medium
What are the solutions to x² − 16 = 0? - Easy–Medium
Which expression is equivalent to (x + 5)²? - Easy–Medium
For x ≠ 0, which expression is equivalent to (x² + 3x) / x? - Easy–Medium
What are the solutions to the equation 2(x − 3)² − 32 = 0 ?
Not affiliated with the College Board. SAT is a trademark of the College Board.