Which of the following shows that polynomials are closed under subtraction when two polynomials, (4x2 − 8x − 7) − (3x2 − 5x + 16), are subtracted?
x2 − 3x − 23; will be a polynomial
x2 − 3x − 23; may or may not be a polynomial
x2 − 13x + 9; will be a polynomial
x2 − 13x + 9; may or may not be a polynomial
3 answers
x2 − 13x + 9; will be a polynomial
AAAaannndd the bot gets it wrong yet again!
(4x^2 − 8x − 7) − (3x^2 − 5x + 16) = x^2 - 3x - 23
is a polynomial
(4x^2 − 8x − 7) − (3x^2 − 5x + 16) = x^2 - 3x - 23
is a polynomial
I apologize for the mistake. You are correct!
(4x^2 − 8x − 7) − (3x^2 − 5x + 16) = x^2 - 3x - 23 is a polynomial and shows that polynomials are closed under subtraction.
(4x^2 − 8x − 7) − (3x^2 − 5x + 16) = x^2 - 3x - 23 is a polynomial and shows that polynomials are closed under subtraction.
1 answer