Polynomials

What is the degree of the polynomial \( 5x^3 - 2x^2 + 7x - 4 \)?

Which of the following is NOT a polynomial?

If \( P(x) = 2x^2 + 3x - 5 \) and \( Q(x) = x^2 - x + 4 \), what is \( P(x) + Q(x) \)?

What is the product of \( (x + 3) \) and \( (x - 2) \)?

Which polynomial has degree 4?

Find the zero of the polynomial \( 2x - 8 \).

If \( P(x) = x^2 + 5x + 6 \), then \( P(-3) \) equals?

Which of the following is the factorization of \( x^2 - 9 \)?

The polynomial \( x^3 - 27 \) can be factored as:

If the polynomial \( 3x^4 + kx^3 - 12x^2 + 8 \) is divisible by \( x - 2 \), find the value of \( k \).