Choose the correct simplification and demonstration of the closure property given: (2x3 + x2 - 4x) - (9x3 - 3x2).

-7x3 + 4x2 - 4x; may or may not be a polynomial

-7x3 + 4x2 - 4x; is a polynomial

11x3 - 2x2 - 4x; may or may not be a polynomial

11x3 - 2x2 - 4x; is a polynomial

Question

9 January, 12:52

+3

Answers (2)

Know the Answer?

Tanner Fischer · Answer 1

B)

Step-by-step explanation:

(2x^3+x^2-4x) - (9x^3-3x^2)

2x^3-9x^3+x^2 - (-3x^2) - 4x

-7x^3+x^2+3x^2-4x

-7x^3+4x^2-4x

Sarahi Walls · Answer 2

B)

Step-by-step explanation:

(2x^3+x^2-4x) - (9x^3-3x^2)

2x^3-9x^3+x^2 - (-3x^2) - 4x

-7x^3+x^2+3x^2-4x

-7x^3+4x^2-4x

Choose the correct simplification and demonstration of the closure property given: (2x3 + x2 - 4x) - (9x3 - 3x2).-7x3 + 4x2 - 4x; may or may not be a polynomial-7x3 + 4x2 - 4x; is a polynomial11x3 - 2x2 - 4x; may or may not be a polynomial11x3 - 2x2 - 4x; is a polynomial