In the given question, all the equations are fourth degree polynomial because they all have the highest power of 4
What is degree of polynomial?
A polynomial's degree is the highest or the greatest power of a variable in a polynomial equation.
In the given question, all the equation are fourth degree polynomial
- 2x^3 -3x^2 + 1 + 5x^4
- 5x^4 + 2x^3 -3x^2 + 1
- -3x^2 + 1 + 5x^4 + 2x^3
- 1 - 3x^2 + 2x^3 + 5x^4
What closure property relates here is that when we add two different polynomial, the result will definitely be a polynomial.
Learn more on degree of polynomial here;
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