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Answer:
[tex]-\sqrt{11}[/tex]
Step-by-step explanation:
As square root value is written with both + and - signs
In Given case:
A polynomial has root [tex]\sqrt{11}[/tex]
= ±3.316
Also [tex]-\sqrt{11}[/tex]
= ±3.316
Hence [tex]-\sqrt{11}[/tex] is also root of the polynomial!