Question

Which of the following is true for the polynomial obtained by the simplification of (x + 1)(x + 3)?

• A. It is a trinomial.
• B. The degree of the polynomial is 3.
• C. It is a binomial.
• D. None of these

Answer 1

The correct option is A It is a trinomial.

$\text{Given:}(x+1)(x+3)$

$(x+1)(x+3)=x^2+3x+x+3=x^2+4x+3$

$x^2+4x+3\text{has three terms and it is}\text{a trinomial.}$