Which polynomial is a quintic trinomial? A.−x4−5x2+1
B. 3x5+7x2−9x4
C. x3+2x2−8x+16
D. x² + 4

A quintic trinomial has a maximum power of 5 and three terms.

For example: x^5 + x^4 + x^3

Here, the only quintic trinomial is D: 3x^5 + 7x^2 - 9x^4

Step-by-step explanation:

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Step-by-step explanation:

I have seen this exact question and this was the answer.

Hope it helps.