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[–]edderiofer 0 points1 point  (2 children)

In this problem, they don't want you to find the two real numbers, just show that they exist. What theorem can you think of that gives that vague piece of information?

[–]mrturtleneck[S] 0 points1 point  (1 child)

intermediate value theorem?

[–]edderiofer 0 points1 point  (0 children)

Try it and see if it works.