Answer: x4 - 7x + 9
Explanation:
Hi, a trinomial is a polynomial with three terms.
Analyzing the options given:
a-3x3 = 1 term
b-4x - 1 = 2 terms
c-x4 - 7x + 9 = 3 terms
d-x3 + 2x2 - 5x + 3 = 4 terms
The correct option is polynomial c.
Since option c has 3 terms, it is a trinomial.
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