Answer:
9
Step-by-step explanation:
Definition of: Coefficient
A number used to multiply a variable.
Example: 6z means 6 times z, and "z" is a variable, so 6 is a coefficient.
Variables with no number have a coefficient of 1.
Example: x is really 1x.
coefficients:
3x⁴+ 5x² + 1x
sum of the coefficients:
3 + 5 + 1
8 + 1
9
