In which of the following expressions does the "X" term have a coefficient of -1?

Question

A. -2x^2 + x + 7
B. -x^2 + 3x + 1
C. 2x^2 + 6x - 1
D. 3x^2 - x - 4

Answer 1

The "X" term is the term that includes the variable x. To find the coefficient of the "X" term, we look at the number that multiplies x.

A. -2x^2 + x + 7
The "X" term has a coefficient of 1, not -1.

B. -x^2 + 3x + 1
The "X" term has a coefficient of 3, not -1.

C. 2x^2 + 6x - 1
The "X" term has a coefficient of 6, not -1.

D. 3x^2 - x - 4
The "X" term has a coefficient of -1.

Therefore, the correct answer is D. 3x^2 - x - 4.