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irakobra [83]
3 years ago
14

Which expression is a trinomial of degree 1? A. x^3+x^2-x B. xy^2 C. 6+x-y D. 3x-y

Mathematics
2 answers:
ki77a [65]3 years ago
7 0
C

Trinomial means three parts
A and C or trinomial's but the degree on a is at three and the degree of C is a one
GrogVix [38]3 years ago
3 0

Answer:  The expression is (C). 6 + x - y.

Step-by-step explanation:  We are given to select the expression that is a trinomial of degree 1.

<u>A TRINOMIAL OF DEGREE 1 :</u> It is an algebraic expression with three terms, where the maximum degree of unknown variables in the terms is 1.

(A) The first expression is x^3+x^2-x.

Here, we have three terms, so it is a trinomial and the highest power of the unknown variable is 3, not 1. Hence, it is a trinomial of degree 3.

So, option (A) is incorrect.

(B) The second expression is xy^2.

Here, we have only one term, so it is a monomial and the highest power of the unknown variables is 1 + 2 = 3, not 1. Hence, it is a monomial of degree 3.

So, option (B) is incorrect.

(C) The third expression is 6+x-y.

Here, we have three terms, so it is a trinomial and the highest power of the unknown variable is 1. Hence, it is a trinomial of degree 1.

So, option (C) is incorrect.

(D) The fourth expression is 3x-y.

Here, we have two terms, so it is a binomial and the highest power of the unknown variables is 1. Hence, it is a binomial of degree 1.

So, option (D) is incorrect.

Thus, option (C) is correct.

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