Question

Which of the following is a true statement?

Options

• x² + 5x – 3 is a linear polynomial.

• x² + 4x – 1 is a binomial.

• x + 1 is a monomial.

• 5x³ is a monomial.

Answer 1

5x³ is a monomial.

Explanation:

(a) x² + 5x – 3 has degree 2 (three terms) → quadratic, not linear.

(b) x² + 4x – 1 has three terms (x², 4x, –1) → a trinomial, not a binomial.

(c) x + 1 has two terms → a binomial, not a monomial.

(d) 5x³ is a single term (coefficient 5 times x³) → a monomial.