Algebra Help Please!
What are the real or imaginary solutions of the polynomial equation?

Question

anonymous · Answer

$$x^{4}-41x^{2}=-400$$

anonymous · Answer

-16 and -25
(so you won't have to wonder later when you need it.)

anonymous · Answer

@ehuman  how did you get to that?

anonymous · Answer

that is not the answer, it is a step you will need after you answer loser66's question

anonymous · Answer

oooooooooooooohhhhh

anonymous · Answer

"so you won't have to wonder later when you need it"

☺

anonymous · Answer

ok...im confused on what the first couple steps are... normally im good at algebra but right now I have a c help!

anonymous · Answer

We do a substitution, now look at the 2 numbers I gave earlier they will make sense.
Remember that this is a fourth order equation, you will end up with 4 answers.
Remember to back substitute once you solve for u
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