Question

$\text{Which of the following expression is a}\text{trinomial ?}$

• A. $a+bc$
• B. $7c+9ab-13b^2+2$
• C. $6x+2y^3+9z^2+3$
• D. $6+9y+x+9x$

Answer 1

The correct option is D $6+9y+x+9x$

Expressions that contain 3 terms is called a trinomial.

$6+9y+x+9x=6+9y+10x$
has exactly 3 terms.

$\text{Hence,}6+9y+x+9x\text{is a trinomial.}$