latonya
latonya
06-06-2014
Mathematics
contestada
Solve the equation: X to the 4th power - 81=0
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konrad509
konrad509
06-06-2014
[tex]x^4-81=0\\ x^4=81\\ x^4=3^4 \vee x^4=(-3)^4\\x=3 \vee x=-3[/tex]
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