Classifying, Evaluating, Adding, Subtracting Polynomials

What is the name of the following polynomial?
x²+ 4x - 3

• Linear Trinomial
• Quadratic Trinomial
• Linear Binomial
• Quadratic Binomial

What is the name of the following expression?

-3x² + 11x³

• Quadratic Trinomial

• Cubic Trinomial

• Cubic Binomial

• Cubic Trinomial

What is the name of the following expression?
-8

• Constant Monomial
• 8th degree Monomial
• Constant Quadratic
• Constant Cubic

Add the polynomials.
(3x³ + 3x² – 4x + 5) + (x³ – 2x² + x – 4)

• 4x³ + 1x² – 3x + 1
• 2x³ + 1x² - 5x + 9
• 6x³ + 1x - 1x² - 3
• 3x⁵ +1x - 1x⁵ - 3x

(4x²+ x) - (x²+ 2x)

• 3x² - x
• 4x² + 2x
• 3x² + 3x
• 3x² + 2x

Simplify the expression.
(4n⁴ - 8n + 4) - (8n² + 4n⁴ + 1)

• -8n² - 8n + 3 
• -7n² - 8n + 3 
• -6n² - 8n + 3
• -7n² - 4n + 3

Add the following polynomials:

(x³ + 6x - 5) + (-6x² + 4x + 3)

• x³ - 6x² +10x - 8

• x³ - 6x² +10x + 2

• x³ - 6x² +10x - 2

• x³ + 4x - 2

Subtract the following polynomials:

(6x² + 10x - 9) - (4x² - 13)

• 2x² + 10x - 22

• 10x² + 10x - 22

• 2x² + 10x - 4

• 2x² + 10x + 4

Subtract the following polynomials:

(-5x² + x³ - 2x + 3) - (-5x² -x³ + 4x + 8)

• 2x³ - 6x + 11

• 2x³ - 6x - 5

• 2x³ - 10x² - 6x - 5

• - 10x² - 6x - 5

Evaluate the polynomial.

 $f\left(n\right)=n^3-5n^2+9n-13\ \ \ \ \ \ at\ \ \ \ \ \ \ n=3$