How many trinomials are there? (i) \[4y-7z\] (ii) \[x+y-xy\] (iii) \[7mn\] (iv) \[{{z}^{2}}-3z+8\] (v) \[1+x+{{x}^{2}}\]

How many trinomials are there? (i) \[4y-7z\] (ii) \[x+y-xy\] (iii) \[7

1.	How many trinomials are there? (i) \[4y-7z\] (ii) \[x+y-xy\] (iii) \[7mn\] (iv) \[{{z}^{2}}-3z+8\] (v) \[1+x+{{x}^{2}}\]
A.	2
B.	3
C.	4
D.	5
Answer» C. 4

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How many trinomials are there? (i) \[4y-7z\] (ii) \[x+y-xy\] (iii) \[7mn\] (iv) \[{{z}^{2}}-3z+8\] (v) \[1+x+{{x}^{2}}\]

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