i'm a bit confused and need some help... lesson 7: polynomials and properties of exponents unit test, unit 6.

Question

4. what are the coefficients in the polynomial 7x^2-4x+6?

Answer 1

the coefficients are 7 and 2
the link below tells you the explanation of how i got 7 and 2:
www.mathsisfun.com/definitions/coefficient.html

Answer 2

Disagree. 7 and 4 are coefficients.

Answer 3

2 is an exponent.