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Solve the equation x^4-4x^2+8x+35=0 gine...

Solve the equation `x^4-4x^2+8x+35=0` gine that one of roots is `2+sqrt(-3)`

A

all roots are imaginary

B

two real and two imaginary roots

C

one root real and three imaginary

D

none of these.

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A DAS GUPTA-Equations, Inequation and Expressions-Exercise
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  4. Let alpha,beta be the roots of the equation (x-a)(x-b)=c ,c!=0. Then t...

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  11. The real value of a for which x^2+i(a-1)x+5=0 will have a pair of con...

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  13. The expression a^2x^2+bx+1 will be positive for all x in R if

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  14. If x ,y ,a n dz are real and different and u=x^2+4y^2+9z^2-6y z-3z x-2...

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  17. If x^2+p x=1 is a factor of the expression a x^3+b x=c , then a^2-c^2=...

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  18. If a+b+c=0, then, the equation 3ax^(2)+2bx+c=0 has , in the interval ...

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  19. If the value of ax^2+bx+c is always an integer for integral values of ...

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