Question

x^4+5x^2_36=0 solve

please solve this question ​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Step-by-step explanation:

x^4+5x^2_36=0

=x^4+9x^2-4x^2-36=0

=x^2(x^2+9)-4(x^2+9)=0

=(x^2+9)(x^2-4)= 0

x^2+9=0 x^2-4=0

X^2= -9 x^= 4

x=√-9 x=+2 or x= -2

= +3i, -3i real roots

imaginary

roots

so x^4+5x^2_36=0, roots are +2,-2,3i,-3i