Question

resouva a equalao biquadrada 4x4-28x2+48=0?​

Answer 1

vai ser igual a "8"

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Answer 2

Resposta:

$4x^4-28x^2+48=0\\\\4u^2-28u+48=0\\\\u=4,\:u=3\\\\x=2,\:x=-2,\:x=\sqrt{3},\:x=-\sqrt{3}$