[lots of points] what are all of the real roots of the following polynomial?

Notice you can factorize

by grouping the terms as

Then you know right away that is a (real) root, so we eliminate C and D.

The remaining quartic can be factored easily:

which admits four more (also real) roots, and , so the answer is B.

answer:

sometimes

*i think

answ5

step-by-step explanation:

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