Part a: create a fourth-degree polynomial in standard form. how do you know it is in standard form? (5 points) part b: explain the closure property as it relates to polynomials. give an example. (5 points)

A. polynomials is standard form are written with their degrees arranged from left to right (highest degree to lowest degree)example: 4x^4+ 2x^3 + 6x^2 + 5x -7b. the closure property means that they are closed in addition, subtraction just like integers. i.e. their degrees dont change under addition and subtraction example: (3x^3 + 4x ) + (6x^4 - x)= 3x^3 + 4x + 6x^4 - x= 3x^3 + 3x + 6x^4