The Coefficient of a term in an expression is the number which is multiplied by one or more variables or powers of variables in the term.
Coefficients can be positive or negative or zero.
While adding or subtracting polynomials, you just have to add or subtract the coefficients in the like terms.
5x - 3: Here 5 is the coefficient of the linear term 5x.
3xy2 - 7z: Here 3 and - 7 are the coefficients of the first and second terms respectively.
B. - 1
D. - 5
Correct Answer: D
Step 1: The coefficient of p in the expression p3 + 2p2 - 5p - 1 is -5.