Question

Choose the correct simplification and demonstration of the closure property given: (4x3 + 3x2 − 6x) − (10x3 + 3x2).

Answer 1

Answer:

After 1818, the Oregon Country was controlled

solely by the United States.

solely by Great Britain.

jointly by United States and Great Britain.

jointly by the United States and Spain.Step-by-step explanation:

Answer 2

Answer:

 −6x³ − 6x; is a polynomial

Explanation:

• $\left(4x^3\:+\:3x^2\:-\:6x\right)\:-\:\left(10x^3\:+\:3x^2\right)$

               [ open brackets ]

• $\left4x^3\:+\:3x^2\:-\:6x\right\:-10x^3 - 3x^2$

                [ group terms ]

• $4x^3-10x^3+3x^2-3x^2-6x$    

              [ final answer ]

• $-6x^3-6x$ .......this is a polynomial as it contains variable, coefficients.