f(x) = x^4 - 6x^2 + 8 factors. Solve for the exact values of the roots.  Do not round to decimals.

Expert Answers
samhouston eNotes educator| Certified Educator

First, factor the function.

Once the function is factored, solve for each factor set by setting the factor equal to zero.

The solutions are:

-2

2

-sqrt(2)

sqrt(2)

View image for work.

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