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Answer:
-15 is not a zero of f(x)
Step-by-step explanation:
f(-15) = 3[tex](-15)^{2}[/tex] + 17(-15) + 10
=3(225) - 255 + 10 ≠ 0
= 675 - 255 + 10
= 430 ≠ 0
-15 is not a zero of f(x)