Mathematics, 01.10.2019 23:30 sammamamam1090

Which of the following shows that polynomials are closed under subtraction when two polynomials, (4x2 − 8x − 7) − (3x2 − 5x + 16), are subtracted?
a. x2 − 3x − 23; will be a polynomial
b. x2 − 3x − 23; may or may not be a polynomial
c. x2 − 13x + 9; will be a polynomial
d. x2 − 13x + 9; may or may not be a polynomial

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Which of the following shows that polynomials are closed under subtraction when two polynomials, (4x...

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