Which expression is a trinomial?
a. x+y-13
b. 4xyz
c. 4x^3
d. x^3-3x^2+7x+5

  A.  x+y-13

Step-by-step explanation:

A trinomial is a polynomial with 3 terms. Here are comments on the answer choices:

  A. 3 terms -- your answer

  B. 1 term of degree 3

  C. 1 term of degree 3

  D. 4 terms of degrees ranging from 3 to 0.

A.

Step-by-step explanation:

We have to find the expression which is tri-nomial.

Trinomial: It is that expression which contains three terms.

A.

It contains three terms .Therefore, it is trinomial.

B.4xyz

It does not contains three terms .Therefore, it is false.

C.

It does not contains three terms .Therefore, it is false.

D.

It contains four terms .Therefore, it is not trinomial.

A.

g

step-by-step explanation:

1. 34

2. 268

3. x=14.4

step-by-step explanation: