Which of the following are polynomials? Check all that apply. A. 3x3-9
B. 3/5x4-18x3+2-10x+3.5
C. -x3+5x2+7√x-1
D. 2x-2+5x-3
E. 5.3x2+3x-2/x+6​

Explanation:

when studying polynomials, you often hear the terms zeros, roots, factors and x x the multiplicity of a zero is important because it tells us how the graph of the let's look at the graph of a function that has the same zeros

step-by-step explanation:

i believe the answer is the polygon, heptagon.