Identify the trinomial among the given expressions.

$7 x + 8 x y$

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$1 + 2 x + 3 y$

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$3 x + 7 x y + y x$

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$3 x + 2 y$

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Solution

The correct option is B
$1 + 2 x + 3 y$

$7 x + 8 x y$ has two unlike terms. So, it is a binomial.
$1 + 2 x + 3 y$ has three unlike terms. So, it is a trinomial.

$3 x + 7 x y + y x = 3 x + 8 x y$ which has two unlike terms. So, it is a binomial.

$3 x + 2 y$ has two unlike terms. So, it is a binomial.

Hence, option B is correct.

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Identify the trinomial among the given expressions.

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