zharia30
zharia30 zharia30
  • 19-04-2022
  • Mathematics
contestada


x^4+ 4x² – 45 =0
factored form (x² - 5)(x² +9)=0


does anyone know how to solve this?

Respuesta :

austindeh
austindeh austindeh
  • 19-04-2022

Answer:

[tex]( {x}^{2} - 5)( {x}^{2} + 9) = 0 \\ {x}^{2} - 5 = 0 \: \: \: \: \: \: \: \: {x}^{2} + 9 = 0 \\ {x}^{2} = 5 \: \: \: \: \: \: \: \: {x}^{2} = - 9 \\ x = \sqrt{5} \: \: \: \: \: \: \: \: x = \sqrt{ - 9} [/tex]

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