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Algebra 9 Online
OpenStudy (anonymous):

help solving polinomial equations

OpenStudy (anonymous):

\[x ^{3}+216=0\]

OpenStudy (mertsj):

1. Subtract 216 from both sides 2. Take the third root of both sides.

OpenStudy (anonymous):

what does it look like worked out, i am confused

OpenStudy (inkyvoyd):

Now now, don't you go human wolframing without giving the answer. ;)

OpenStudy (mertsj):

Can you subtract 216 from both sides?

OpenStudy (anonymous):

yes, i get x^3=-216

OpenStudy (mertsj):

Do you know what a third root is?

OpenStudy (mertsj):

For example, the third root of 8 is 2 because 2 raised to the third power is 8

OpenStudy (anonymous):

yes, the thierd root of 216=6 x=6

OpenStudy (mertsj):

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