Question

X^4 - 2x^2 - 3 =0
Solve equation

Answer 1

Answer:

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Step-by-step explanation:

x=± root 3 =±1.7321

x=0.0000−1.0000i

x=0.0000+1.0000i

Answer 2

Answer:√3

Step-by-step explanation:

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

x^4-3x^2+1x^2-3=0

x^2(x^2-3)+1(x^2-3)=0

(x^2+1)(x^2-3)=0

x^2+1=0 ; x^2-3=0

x^2=-1 ; x^2=3

x^2=-1 (neglected as it is negative value) ; x=+or-√3

x=√3

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