For expression, given below, state whether it is a monomial, binomial or trinomial:
(viii) 12−5𝑧−4

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Solution

Step: Counting the number of terms
12−5𝑧−4
Given, 12−5𝑧−4=12−4−5𝑧
=8−5𝑧 [Like terms must be simplified]
It has two terms 8 and 5𝑧 separated by ’-’ symbol.
Hence, it is a binomial.

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