goldenarrow
goldenarrow goldenarrow
  • 24-05-2017
  • Mathematics
contestada

solve x^4+3x^2-4=0

please show work, thank you :)

Respuesta :

hopkinsbailey hopkinsbailey
  • 24-05-2017
x^4+3x^2=4
x^2(x^2+3)=4
x=1 or 2
Answer Link
Аноним Аноним
  • 24-05-2017
x^4 + 3x^2 - 4 = 0
(x^2 - 1))(x^2 + 4) = 0
x^2 - 1 = 0  giving x = 1 and x = -1

x^2 + 4 = 0 giving  x^2  = -4  so x = +2i  and  -2i.
Answer Link

Otras preguntas

one way that the US job market changed after world war 11
Quadrilateral abcd is a trapezoid with what must be shown to prove that abcd is an isosceles trapezoid?
What was the economic activity between Europe and Ming China
A spinner has six equal parts labeled from 1 to 6. The spinner is spun twice. What is the probability of getting a 3 twice in a row? 13 14 1216 136
Which of the following types of warranties is a specific agreement created by the seller or manufacturer? a.Express b. Implied c.Full d. Limited
When a workforce scheduling problems is formulated as an integer programming model, it has:?
What language is this and what would it say if it was translated to English
A decision based on who is harmed the least is an example of which type of decision making? Utilitarian Common good Virtues Fairness and Justice
Which product contains one or more vitamins, minerals, herbs, or other dietary substances that may be lacking in the diet?sports-nutrition bar sports drink anab
what is an isotope atoms with the same number of protons and neutrons atoms with the same number of neutrons but different number of protons atoms with the s