Question 1067024
.
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4x^4 + 36 = 0

is equivalent to


x^4 = 9.


The roots are  {{{sqrt(3)}}},  {{{-sqrt(3)}}},  {{{i*sqrt(3)}}}  and  {{{-i*sqrt(3)}}},  where  i = {{{sqrt(-1)}}}  is the imaginary unit.
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