Question

metal and fan
Which of the following shows that polynomials are closed under addition when two polynomials 4x + 6 and 2x2 − 8x − 4 are added? (1 point)

2x2 − 4x + 2 will be a polynomial
2x2 − 4x + 2 may or may not be a polynomial
2x2 − 12x −10 will be a polynomial
2x2 − 12x −10 may or may not be a polynomial

Answer 1

\[
4x + 6 + 2x^2 - 8x - 4 = 2x^2 - 4x + 2 \\
\text{The addition of the two individual polynomials results in another polynomial.}\\
\text{Therefore, the addition of }4x + 6 \text{ and } 2x^2 - 8x - 4 \text{ is closed under addition.}
\]

Answer 2

im confused

Answer 3

nvm

Answer 4

a is correct option