Question

4
Which of these expressions is a trinomial
1.
30
2. - 2y
3.2 xy - xy + 4
4. x4- x3-x2
​

Answer 1

Step-by-step explanation:

A trinomial is an algebraic expression that has three non-zero terms. Examples of a trinomial expression: x + y + z is a trinomial in three variables x, y and z. 2a2 + 5a + 7 is a trinomial in one variables a.

So the option is 3