# math

posted by
**hedi**
.

hi my name is hedi and i am in serious need with help with some math problems dealing with polynomials can some one please help me?

Determine whether each expression is a polynomial. If it is a polynomial, state the degree of the polynomial. (This is the question)

1.5x^3+2xy6^4+6xy

2.-4/3ac-a^5d^3

3.12m^8n^9/(m-n)^2

4.six 6 c square root of a negative 2 plus c minus 1