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Which of these expressions is a binomial?

Class 8Adding and Subtracting ExpressionsAlgebra

A $4 pq$
B $x + y - z$
C $m^{2} + 2 m + 1$
D $3 a + 5 b$

Step-by-Step Solution

A binomial has exactly two unlike terms.

3 a + 5 b

has two;

4 pq

is a monomial; the other two have three terms (trinomials).

Answer: D)

3 a + 5 b

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